fkie_cve-2021-20292
Vulnerability from fkie_nvd
Published
2021-05-28 11:15
Modified
2024-11-21 05:46
Severity ?
Summary
There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.
References
▼ | URL | Tags | |
---|---|---|---|
secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1939686 | Issue Tracking, Patch, Third Party Advisory | |
secalert@redhat.com | https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html | Mailing List, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1939686 | Issue Tracking, Patch, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html | Mailing List, Third Party Advisory |
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | * | |
fedoraproject | fedora | 33 | |
redhat | enterprise_linux | 6.0 | |
redhat | enterprise_linux | 7.0 | |
debian | debian_linux | 9.0 |
{ configurations: [ { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", matchCriteriaId: "424E163E-C273-417A-B00F-CE1F142CD491", versionEndExcluding: "4.9.298", versionStartIncluding: "3.3", vulnerable: true, }, { criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", matchCriteriaId: "1426249E-CED5-4343-9548-D30966F8294C", versionEndExcluding: "4.14.263", versionStartIncluding: "4.10", vulnerable: true, }, { criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", matchCriteriaId: "1A020ACD-7DC7-4635-8F8A-191E3FD6799D", versionEndExcluding: "4.19.140", versionStartIncluding: "4.15", vulnerable: true, }, { criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", matchCriteriaId: "74B477FD-015E-419F-BC30-697A9C7C8CB7", versionEndExcluding: "5.4.59", versionStartIncluding: "4.20", vulnerable: true, }, { criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", matchCriteriaId: "F2625906-877F-4869-AB1F-F33B6F847151", versionEndExcluding: "5.7.16", versionStartIncluding: "5.5", vulnerable: true, }, { criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", matchCriteriaId: "1ACB7B2B-119B-47D0-8C60-294AB2076D5C", versionEndExcluding: "5.8.2", versionStartIncluding: "5.8", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", matchCriteriaId: "E460AA51-FCDA-46B9-AE97-E6676AA5E194", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*", matchCriteriaId: "2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC", vulnerable: true, }, { criteria: "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", matchCriteriaId: "142AD0DD-4CF3-4D74-9442-459CE3347E3A", 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, }, ], negate: false, operator: "OR", }, ], }, ], cveTags: [], descriptions: [ { lang: "en", value: "There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.", }, { lang: "es", value: "Se presenta un fallo reportado en el kernel de Linux en versiones anteriores a 5.9, en el archivo drivers/gpu/drm/nouveau/nouveau_sgdma.c en la función nouveau_sgdma_create_ttm en el subsistema Nouveau DRM. El problema es debido a una falta de comprobación de la existencia de un objeto antes de llevar a cabo operaciones en el objeto. Un atacante con una cuenta local con privilegios de root puede aprovechar esta vulnerabilidad para escalar privilegios y ejecutar código en el contexto del kernel", }, ], id: "CVE-2021-20292", lastModified: "2024-11-21T05:46:17.750", metrics: { cvssMetricV2: [ { acInsufInfo: false, baseSeverity: "HIGH", cvssData: { accessComplexity: "LOW", accessVector: "LOCAL", authentication: "NONE", availabilityImpact: "COMPLETE", baseScore: 7.2, confidentialityImpact: "COMPLETE", integrityImpact: "COMPLETE", vectorString: "AV:L/AC:L/Au:N/C:C/I:C/A:C", version: "2.0", }, exploitabilityScore: 3.9, impactScore: 10, obtainAllPrivilege: false, obtainOtherPrivilege: false, obtainUserPrivilege: false, source: "nvd@nist.gov", type: "Primary", userInteractionRequired: false, }, ], cvssMetricV31: [ { cvssData: { attackComplexity: "LOW", attackVector: "LOCAL", availabilityImpact: "HIGH", baseScore: 6.7, baseSeverity: "MEDIUM", confidentialityImpact: "HIGH", integrityImpact: "HIGH", privilegesRequired: "HIGH", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", version: "3.1", }, exploitabilityScore: 0.8, impactScore: 5.9, source: "nvd@nist.gov", type: "Primary", }, ], }, published: "2021-05-28T11:15:08.130", references: [ { source: "secalert@redhat.com", tags: [ "Issue Tracking", "Patch", "Third Party Advisory", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=1939686", }, { source: "secalert@redhat.com", tags: [ "Mailing List", "Third Party Advisory", ], url: "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Issue Tracking", "Patch", "Third Party Advisory", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=1939686", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Mailing List", "Third Party Advisory", ], url: "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html", }, ], sourceIdentifier: "secalert@redhat.com", vulnStatus: "Modified", weaknesses: [ { description: [ { lang: "en", value: "CWE-416", }, ], source: "secalert@redhat.com", 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.
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