fkie_cve-2021-3682
Vulnerability from fkie_nvd
Published
2021-08-05 20:15
Modified
2024-11-21 06:22
Severity ?
Summary
A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
qemu | qemu | * | |
qemu | qemu | 6.1.0 | |
redhat | enterprise_linux | 8.0 | |
redhat | enterprise_linux | 8.0 | |
debian | debian_linux | 9.0 | |
debian | debian_linux | 10.0 | |
debian | debian_linux | 11.0 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "matchCriteriaId": "926CAE64-4C4F-4921-AC44-387424930FAC", "versionEndExcluding": "6.1.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:qemu:qemu:6.1.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "08652ABF-7A2E-4E02-BF3A-DC7C59A4DC45", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*", "matchCriteriaId": "053C1B35-3869-41C2-9551-044182DE0A64", "vulnerable": true }, { "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*", "matchCriteriaId": "3AA08768-75AF-4791-B229-AE938C780959", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true }, { "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true }, { "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host." }, { "lang": "es", "value": "Se ha encontrado un fallo en la emulaci\u00f3n del dispositivo redirector USB de QEMU en versiones anteriores a 6.1.0-rc2. Ocurre cuando se abandonan paquetes durante una transferencia masiva desde un cliente SPICE debido a que la queue de paquetes est\u00e1 lleno. Un cliente SPICE malicioso podr\u00eda usar este fallo para hacer que QEMU llame a la funci\u00f3n free() con metadatos de trozos de pila falsificados, resultando en un bloqueo de QEMU o la posible ejecuci\u00f3n de c\u00f3digo con los privilegios del proceso QEMU en el host" } ], "id": "CVE-2021-3682", "lastModified": "2024-11-21T06:22:09.070", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P", "version": "2.0" }, "exploitabilityScore": 6.8, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2021-08-05T20:15:09.963", "references": [ { "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1989651" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html" }, { "source": "secalert@redhat.com", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/202208-27" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210902-0006/" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://www.debian.org/security/2021/dsa-4980" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1989651" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/202208-27" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210902-0006/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://www.debian.org/security/2021/dsa-4980" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-763" } ], "source": "secalert@redhat.com", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-763" } ], "source": "nvd@nist.gov", "type": "Secondary" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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