fkie_cve-2018-1093
Vulnerability from fkie_nvd
Published
2018-04-02 03:29
Modified
2024-11-21 03:59
Severity ?
Summary
The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EA4F2AD9-993F-4246-B6F9-7723FF82AF6C", "versionEndIncluding": "4.15.15", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers." }, { "lang": "es", "value": "La funci\u00f3n ext4_valid_block_bitmap en fs/ext4/balloc.c en el kernel de Linux hasta la versi\u00f3n 4.15.15 permite que los atacantes provoquen un denegaci\u00f3n de servicio (lectura fuera de l\u00edmites y cierre inesperado del sistema) mediante una imagen ext4 manipulada dado que balloc.c y ialloc.c no validan los n\u00fameros de los bloques de mapa de bits." } ], "id": "CVE-2018-1093", "lastModified": "2024-11-21T03:59:10.063", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 8.6, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true } ], "cvssMetricV30": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.0" }, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2018-04-02T03:29:00.307", "references": [ { "source": "secalert@redhat.com", "tags": [ "Mailing List" ], "url": "http://openwall.com/lists/oss-security/2018/03/29/1" }, { "source": "secalert@redhat.com", "tags": [ "Issue Tracking" ], "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199181" }, { "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560782" }, { "source": "secalert@redhat.com", "tags": [ "Patch" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f" }, { "source": "secalert@redhat.com", "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html" }, { "source": "secalert@redhat.com", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html" }, { "source": "secalert@redhat.com", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html" }, { "source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3676-1/" }, { "source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3676-2/" }, { "source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3752-1/" }, { "source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3752-2/" }, { "source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3752-3/" }, { "source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3754-1/" }, { "source": "secalert@redhat.com", "url": "https://www.debian.org/security/2018/dsa-4188" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List" ], "url": "http://openwall.com/lists/oss-security/2018/03/29/1" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking" ], "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199181" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560782" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/3676-1/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/3676-2/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/3752-1/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/3752-2/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/3752-3/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/3754-1/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.debian.org/security/2018/dsa-4188" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-125" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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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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