Vulnerabilites related to libssh2 - libssh2
Vulnerability from fkie_nvd
Published
2019-03-25 19:29
Modified
2024-11-21 04:42
Severity ?
Summary
An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| opensuse | leap | 15.0 | |
| opensuse | leap | 42.3 | |
| redhat | enterprise_linux | 8.0 | |
| redhat | enterprise_linux_desktop | 7.0 | |
| redhat | enterprise_linux_server | 7.0 | |
| redhat | enterprise_linux_server_aus | 7.6 | |
| redhat | enterprise_linux_server_eus | 7.6 | |
| redhat | enterprise_linux_server_tus | 7.6 | |
| redhat | enterprise_linux_workstation | 7.0 | |
| fedoraproject | fedora | 28 | |
| oracle | peoplesoft_enterprise_peopletools | 8.56 | |
| oracle | peoplesoft_enterprise_peopletools | 8.57 |
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Vulnerability from fkie_nvd
Published
2019-03-25 18:29
Modified
2024-11-21 04:42
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| debian | debian_linux | 8.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| opensuse | leap | 15.0 | |
| opensuse | leap | 42.3 | |
| redhat | enterprise_linux_desktop | 7.0 | |
| redhat | enterprise_linux_server | 7.0 | |
| redhat | enterprise_linux_server_aus | 7.6 | |
| redhat | enterprise_linux_server_eus | 7.6 | |
| redhat | enterprise_linux_server_tus | 7.6 | |
| redhat | enterprise_linux_workstation | 7.0 |
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}
Vulnerability from fkie_nvd
Published
2019-03-21 16:01
Modified
2024-11-21 04:42
Severity ?
5.0 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| fedoraproject | fedora | 28 | |
| fedoraproject | fedora | 29 | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| opensuse | leap | 15.0 | |
| opensuse | leap | 42.3 |
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},
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}
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"id": "CVE-2019-3859",
"lastModified": "2024-11-21T04:42:44.157",
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}
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}
],
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"type": "Secondary"
},
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}
Vulnerability from fkie_nvd
Published
2015-03-13 14:59
Modified
2025-04-12 10:46
Severity ?
Summary
The kex_agree_methods function in libssh2 before 1.5.0 allows remote servers to cause a denial of service (crash) or have other unspecified impact via crafted length values in an SSH_MSG_KEXINIT packet.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| debian | debian_linux | 7.0 | |
| libssh2 | libssh2 | * | |
| fedoraproject | fedora | 20 | |
| fedoraproject | fedora | 21 | |
| fedoraproject | fedora | 22 |
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}
],
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"vulnStatus": "Deferred",
"weaknesses": [
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}
Vulnerability from fkie_nvd
Published
2019-03-25 19:29
Modified
2024-11-21 04:42
Severity ?
5.0 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| debian | debian_linux | 8.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| opensuse | leap | 15.0 | |
| opensuse | leap | 42.3 |
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},
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"tags": [
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},
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"tags": [
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Vulnerability from fkie_nvd
Published
2019-03-21 21:29
Modified
2024-11-21 04:42
Severity ?
Summary
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| fedoraproject | fedora | 28 | |
| fedoraproject | fedora | 29 | |
| fedoraproject | fedora | 30 | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| redhat | enterprise_linux | 8.0 | |
| redhat | enterprise_linux_desktop | 7.0 | |
| redhat | enterprise_linux_server | 7.0 | |
| redhat | enterprise_linux_server_aus | 7.6 | |
| redhat | enterprise_linux_server_eus | 7.6 | |
| redhat | enterprise_linux_server_tus | 7.6 | |
| redhat | enterprise_linux_workstation | 7.0 | |
| opensuse | leap | 42.3 | |
| apple | xcode | * | |
| oracle | peoplesoft_enterprise_peopletools | 8.56 | |
| oracle | peoplesoft_enterprise_peopletools | 8.57 |
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Vulnerability from fkie_nvd
Published
2019-10-21 22:15
Modified
2024-11-21 04:32
Severity ?
Summary
In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| fedoraproject | fedora | 30 | |
| fedoraproject | fedora | 31 | |
| opensuse | leap | 15.1 | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 | |
| netapp | active_iq_unified_manager | - | |
| netapp | element_software | - | |
| netapp | hci_management_node | - | |
| netapp | ontap_select_deploy_administration_utility | - | |
| netapp | solidfire | - | |
| netapp | bootstrap_os | - | |
| netapp | hci_compute_node | - |
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"value": "En libssh2 versi\u00f3n v1.9.0 y anteriores, la l\u00f3gica de la funci\u00f3n SSH_MSG_DISCONNECT en el archivo packet.c presenta un desbordamiento de enteros en una comprobaci\u00f3n de l\u00edmites, lo que permite a un atacante especificar un desplazamiento arbitrario (fuera de l\u00edmites) para una lectura de memoria posterior. Un servidor SSH dise\u00f1ado puede ser capaz de revelar informaci\u00f3n confidencial o causar una condici\u00f3n de denegaci\u00f3n de servicio en el sistema del cliente cuando un usuario conecta con el servidor."
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Vulnerability from fkie_nvd
Published
2023-12-18 16:15
Modified
2025-05-23 02:24
Severity ?
Summary
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.
References
Impacted products
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"lang": "en",
"value": "The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH\u0027s use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust."
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"value": "El protocolo de transporte SSH con ciertas extensiones OpenSSH, que se encuentra en OpenSSH anterior a 9.6 y otros productos, permite a atacantes remotos eludir las comprobaciones de integridad de modo que algunos paquetes se omiten (del mensaje de negociaci\u00f3n de extensi\u00f3n) y, en consecuencia, un cliente y un servidor pueden terminar con una conexi\u00f3n para la cual algunas caracter\u00edsticas de seguridad han sido degradadas o deshabilitadas, tambi\u00e9n conocido como un ataque Terrapin. Esto ocurre porque SSH Binary Packet Protocol (BPP), implementado por estas extensiones, maneja mal la fase de protocolo de enlace y el uso de n\u00fameros de secuencia. Por ejemplo, existe un ataque eficaz contra ChaCha20-Poly1305 (y CBC con Encrypt-then-MAC). La omisi\u00f3n se produce en chacha20-poly1305@openssh.com y (si se utiliza CBC) en los algoritmos MAC -etm@openssh.com. Esto tambi\u00e9n afecta a Maverick Synergy Java SSH API anterior a 3.1.0-SNAPSHOT, Dropbear hasta 2022.83, Ssh anterior a 5.1.1 en Erlang/OTP, PuTTY anterior a 0.80 y AsyncSSH anterior a 2.14.2; y podr\u00eda haber efectos en Bitvise SSH hasta la versi\u00f3n 9.31, libssh hasta la 0.10.5 y golang.org/x/crypto hasta el 17 de diciembre de 2023."
}
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"id": "CVE-2023-48795",
"lastModified": "2025-05-23T02:24:58.787",
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"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-12-18T16:15:10.897",
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},
{
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{
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},
{
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},
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},
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},
{
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"url": "https://www.reddit.com/r/sysadmin/comments/18idv52/cve202348795_why_is_this_cve_still_undisclosed/"
},
{
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},
{
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"tags": [
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},
{
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],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Analyzed",
"weaknesses": [
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"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2019-07-16 18:15
Modified
2024-11-21 04:24
Severity ?
Summary
In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 | |
| fedoraproject | fedora | 29 | |
| fedoraproject | fedora | 30 | |
| netapp | cloud_backup | - | |
| netapp | e-series_santricity_os_controller | * | |
| netapp | ontap_select_deploy_administration_utility | - | |
| f5 | traffix_systems_signaling_delivery_controller | * |
{
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"versionEndExcluding": "1.9.0",
"vulnerable": true
}
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}
],
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}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855."
},
{
"lang": "es",
"value": "En libssh2 anterior a la versi\u00f3n 1.9.0, el archivo kex_method_diffie_hellman_group_exchange_sha256_key_exchange en kex.c presenta un desbordamiento de enteros que podr\u00eda conllevar a una escritura fuera de l\u00edmites en la manera en que se leen los paquetes desde el servidor. Un atacante remoto que comprometa un servidor SSH puede ejecutar c\u00f3digo en el sistema cliente cuando un usuario se conecta al servidor. Esto esta relacionado con un error de _libssh2_check_length y es diferente de los diversos problemas corregidos en la versi\u00f3n 1.8.1, tal y como el CVE-2019-3855."
}
],
"id": "CVE-2019-13115",
"lastModified": "2024-11-21T04:24:13.313",
"metrics": {
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{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
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}
],
"cvssMetricV31": [
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"cvssData": {
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"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
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},
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"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2019-07-16T18:15:13.287",
"references": [
{
"source": "cve@mitre.org",
"url": "http://packetstormsecurity.com/files/172834/libssh2-1.8.2-Out-Of-Bounds-Read.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://blog.semmle.com/libssh2-integer-overflow/"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/libssh2/libssh2/compare/02ecf17...42d37aa"
},
{
"source": "cve@mitre.org",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/libssh2/libssh2/pull/350"
},
{
"source": "cve@mitre.org",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"url": "https://libssh2.org/changes.html"
},
{
"source": "cve@mitre.org",
"url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E"
},
{
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},
{
"source": "cve@mitre.org",
"tags": [
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"Third Party Advisory"
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"url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html"
},
{
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"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html"
},
{
"source": "cve@mitre.org",
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html"
},
{
"source": "cve@mitre.org",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6LUNHPW64IGCASZ4JQ2J5KDXNZN53DWW/"
},
{
"source": "cve@mitre.org",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7IF3LNHOA75O4WZWIHJLIRMA5LJUED3/"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20190806-0002/"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://support.f5.com/csp/article/K13322484"
},
{
"source": "cve@mitre.org",
"url": "https://support.f5.com/csp/article/K13322484?utm_source=f5support\u0026amp%3Butm_medium=RSS"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://packetstormsecurity.com/files/172834/libssh2-1.8.2-Out-Of-Bounds-Read.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Third Party Advisory"
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},
{
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"tags": [
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},
{
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},
{
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"tags": [
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"Vendor Advisory"
],
"url": "https://libssh2.org/changes.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E"
},
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{
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Third Party Advisory"
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6LUNHPW64IGCASZ4JQ2J5KDXNZN53DWW/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7IF3LNHOA75O4WZWIHJLIRMA5LJUED3/"
},
{
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"tags": [
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},
{
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{
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}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
},
{
"lang": "en",
"value": "CWE-190"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2019-03-25 19:29
Modified
2024-11-21 04:42
Severity ?
5.0 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| debian | debian_linux | 8.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| opensuse | leap | 15.0 | |
| opensuse | leap | 42.3 |
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Vulnerability from fkie_nvd
Published
2023-08-22 19:16
Modified
2024-11-21 05:13
Severity ?
Summary
An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.
References
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Vulnerability from fkie_nvd
Published
2016-04-13 17:59
Modified
2025-04-12 10:46
Severity ?
Summary
The diffie_hellman_sha256 function in kex.c in libssh2 before 1.7.0 improperly truncates secrets to 128 or 256 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| fedoraproject | fedora | 22 | |
| fedoraproject | fedora | 23 | |
| opensuse | opensuse | 13.2 | |
| libssh2 | libssh2 | * | |
| debian | debian_linux | 7.0 | |
| debian | debian_linux | 8.0 |
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"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html"
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"url": "http://www.securityfocus.com/bid/82514"
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},
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"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177980.html"
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"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html"
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"url": "http://www.securityfocus.com/bid/82514"
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"url": "https://bto.bluecoat.com/security-advisory/sa120"
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"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10156"
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"vulnStatus": "Deferred",
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}
Vulnerability from fkie_nvd
Published
2019-03-25 19:29
Modified
2024-11-21 04:42
Severity ?
Summary
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| opensuse | leap | 15.0 | |
| opensuse | leap | 42.3 | |
| redhat | enterprise_linux | 8.0 | |
| redhat | enterprise_linux_desktop | 7.0 | |
| redhat | enterprise_linux_server | 7.0 | |
| redhat | enterprise_linux_server_aus | 7.6 | |
| redhat | enterprise_linux_server_eus | 7.6 | |
| redhat | enterprise_linux_server_tus | 7.6 | |
| redhat | enterprise_linux_workstation | 7.0 | |
| fedoraproject | fedora | 28 | |
| oracle | peoplesoft_enterprise_peopletools | 8.56 | |
| oracle | peoplesoft_enterprise_peopletools | 8.57 |
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Vulnerability from fkie_nvd
Published
2019-03-21 16:01
Modified
2024-11-21 04:42
Severity ?
7.3 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| fedoraproject | fedora | 29 | |
| debian | debian_linux | 8.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| opensuse | leap | 42.3 |
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Vulnerability from fkie_nvd
Published
2019-03-21 21:29
Modified
2024-11-21 04:42
Severity ?
5.0 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.1 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libssh2 | libssh2 | * | |
| fedoraproject | fedora | 29 | |
| debian | debian_linux | 8.0 | |
| netapp | ontap_select_deploy_administration_utility | - | |
| opensuse | leap | 15.0 | |
| opensuse | leap | 42.3 |
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CVE-2019-3863 (GCVE-0-2019-3863)
Vulnerability from cvelistv5
Published
2019-03-25 17:52
Modified
2025-04-23 19:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2019-3856 (GCVE-0-2019-3856)
Vulnerability from cvelistv5
Published
2019-03-25 18:31
Modified
2025-04-23 19:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
References
| ► | URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2019-13115 (GCVE-0-2019-13115)
Vulnerability from cvelistv5
Published
2019-07-16 00:00
Modified
2024-08-04 23:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
References
| ► | URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2015-1782 (GCVE-0-2015-1782)
Vulnerability from cvelistv5
Published
2015-03-13 14:00
Modified
2024-08-06 04:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The kex_agree_methods function in libssh2 before 1.5.0 allows remote servers to cause a denial of service (crash) or have other unspecified impact via crafted length values in an SSH_MSG_KEXINIT packet.
References
| ► | URL | Tags | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
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CVE-2019-3859 (GCVE-0-2019-3859)
Vulnerability from cvelistv5
Published
2019-03-20 21:18
Modified
2024-08-04 19:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
| ► | URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2019-3860 (GCVE-0-2019-3860)
Vulnerability from cvelistv5
Published
2019-03-25 18:30
Modified
2024-08-04 19:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
| ► | URL | Tags | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2019-3862 (GCVE-0-2019-3862)
Vulnerability from cvelistv5
Published
2019-03-20 21:39
Modified
2024-08-04 19:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
| ► | URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2019-3858 (GCVE-0-2019-3858)
Vulnerability from cvelistv5
Published
2019-03-21 20:22
Modified
2024-08-04 19:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
| ► | URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2019-3855 (GCVE-0-2019-3855)
Vulnerability from cvelistv5
Published
2019-03-21 20:13
Modified
2024-08-04 19:19
Severity ?
VLAI Severity ?
EPSS score ?
Summary
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
References
| ► | URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2016-0787 (GCVE-0-2016-0787)
Vulnerability from cvelistv5
Published
2016-04-13 17:00
Modified
2024-08-05 22:30
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The diffie_hellman_sha256 function in kex.c in libssh2 before 1.7.0 improperly truncates secrets to 128 or 256 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."
References
| ► | URL | Tags | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2019-3857 (GCVE-0-2019-3857)
Vulnerability from cvelistv5
Published
2019-03-25 18:30
Modified
2025-04-23 19:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
References
| ► | URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2020-22218 (GCVE-0-2020-22218)
Vulnerability from cvelistv5
Published
2023-08-22 00:00
Modified
2024-10-03 18:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.
References
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CVE-2023-48795 (GCVE-0-2023-48795)
Vulnerability from cvelistv5
Published
2023-12-18 00:00
Modified
2025-05-14 19:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.
References
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CVE-2019-3861 (GCVE-0-2019-3861)
Vulnerability from cvelistv5
Published
2019-03-25 18:30
Modified
2024-08-04 19:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
References
| ► | URL | Tags | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The libssh2 Project | libssh2 |
Version: 1.8.1 |
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CVE-2019-17498 (GCVE-0-2019-17498)
Vulnerability from cvelistv5
Published
2019-10-21 00:00
Modified
2024-08-05 01:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.
References
| ► | URL | Tags | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
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"url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html"
},
{
"url": "https://security.netapp.com/advisory/ntap-20220909-0004/"
},
{
"url": "http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html"
},
{
"name": "[debian-lts-announce] 20230908 [SECURITY] [DLA 3559-1] libssh2 security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2019-17498",
"datePublished": "2019-10-21T00:00:00",
"dateReserved": "2019-10-11T00:00:00",
"dateUpdated": "2024-08-05T01:40:15.913Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}