gsd-2021-20292
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
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.
Aliases
Aliases
CVE-2021-20292


To clipboard 

{
   GSD: {
      alias: "CVE-2021-20292",
      description: "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.",
      id: "GSD-2021-20292",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-20292.html",
         "https://ubuntu.com/security/CVE-2021-20292",
         "https://security.archlinux.org/CVE-2021-20292",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-20292",
         ],
         details: "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.",
         id: "GSD-2021-20292",
         modified: "2023-12-13T01:23:12.014506Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "secalert@redhat.com",
            ID: "CVE-2021-20292",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "kernel",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "Kernel 5.9",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "n/a",
                  },
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               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "CWE-416",
                     },
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         references: {
            reference_data: [
               {
                  name: "https://bugzilla.redhat.com/show_bug.cgi?id=1939686",
                  refsource: "MISC",
                  url: "https://bugzilla.redhat.com/show_bug.cgi?id=1939686",
               },
               {
                  name: "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
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      },
      "nvd.nist.gov": {
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                  cpe_match: [
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                        cpe_name: [],
                        versionEndExcluding: "5.8.2",
                        versionStartIncluding: "5.8",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  cpe_match: [
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                  cpe_match: [
                     {
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                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
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                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
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         },
         cve: {
            CVE_data_meta: {
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               ID: "CVE-2021-20292",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     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.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
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            },
            references: {
               reference_data: [
                  {
                     name: "https://bugzilla.redhat.com/show_bug.cgi?id=1939686",
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                     tags: [
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                     url: "https://bugzilla.redhat.com/show_bug.cgi?id=1939686",
                  },
                  {
                     name: "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
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                     ],
                     url: "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  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,
               severity: "HIGH",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  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,
            },
         },
         lastModifiedDate: "2023-07-28T19:35Z",
         publishedDate: "2021-05-28T11:15Z",
      },
   },
}


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