gsd-2021-32606
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)
Aliases
Aliases
CVE-2021-32606


To clipboard 

{
   GSD: {
      alias: "CVE-2021-32606",
      description: "In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)",
      id: "GSD-2021-32606",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-32606.html",
         "https://security.archlinux.org/CVE-2021-32606",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-32606",
         ],
         details: "In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)",
         id: "GSD-2021-32606",
         modified: "2023-12-13T01:23:08.656288Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "cve@mitre.org",
            ID: "CVE-2021-32606",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "n/a",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "n/a",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "n/a",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "n/a",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://www.openwall.com/lists/oss-security/2021/05/11/16",
                  refsource: "MISC",
                  url: "https://www.openwall.com/lists/oss-security/2021/05/11/16",
               },
               {
                  name: "[oss-security] 20210512 Re: Linux kernel: net/can/isotp: race condition leads to local privilege escalation",
                  refsource: "MLIST",
                  url: "http://www.openwall.com/lists/oss-security/2021/05/12/1",
               },
               {
                  name: "[oss-security] 20210514 Re: Linux kernel: net/can/isotp: race condition leads to local privilege escalation",
                  refsource: "MLIST",
                  url: "http://www.openwall.com/lists/oss-security/2021/05/13/2",
               },
               {
                  name: "[oss-security] 20210514 Re: Linux kernel: net/can/isotp: race condition leads to local privilege escalation",
                  refsource: "MLIST",
                  url: "http://www.openwall.com/lists/oss-security/2021/05/14/1",
               },
               {
                  name: "FEDORA-2021-4f852b79d1",
                  refsource: "FEDORA",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/",
               },
               {
                  name: "FEDORA-2021-bae582b42c",
                  refsource: "FEDORA",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/",
               },
               {
                  name: "FEDORA-2021-8832eab899",
                  refsource: "FEDORA",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/",
               },
               {
                  name: "[oss-security] 20210528 Re: Linux kernel: net/can/isotp: race condition leads to local privilege escalation",
                  refsource: "MLIST",
                  url: "http://www.openwall.com/lists/oss-security/2021/05/28/1",
               },
               {
                  name: "https://security.netapp.com/advisory/ntap-20210625-0001/",
                  refsource: "CONFIRM",
                  url: "https://security.netapp.com/advisory/ntap-20210625-0001/",
               },
               {
                  name: "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d",
                  refsource: "MISC",
                  url: "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         cve: {
            configurations: [
               {
                  nodes: [
                     {
                        cpeMatch: [
                           {
                              criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                              matchCriteriaId: "2C8A1D02-81A7-44E5-ACFD-CC6A6694F930",
                              versionEndExcluding: "5.12.9",
                              versionStartIncluding: "5.11",
                              vulnerable: true,
                           },
                        ],
                        negate: false,
                        operator: "OR",
                     },
                  ],
               },
               {
                  nodes: [
                     {
                        cpeMatch: [
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                              criteria: "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
                              matchCriteriaId: "36D96259-24BD-44E2-96D9-78CE1D41F956",
                              vulnerable: true,
                           },
                           {
                              criteria: "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                              matchCriteriaId: "E460AA51-FCDA-46B9-AE97-E6676AA5E194",
                              vulnerable: true,
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                              vulnerable: true,
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            ],
            descriptions: [
               {
                  lang: "en",
                  value: "In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)",
               },
               {
                  lang: "es",
                  value: "En el kernel de Linux versiones 5.11 hasta 5.12.2, la función isotp_setsockopt en el archivo net/can/isotp.c permite una escalada de privilegios a root al aprovechar un uso de la memoria previamente liberada. (Esto no afecta a las versiones anteriores que carecen de compatibilidad con CAN ISOTP SF_BROADCAST)",
               },
            ],
            id: "CVE-2021-32606",
            lastModified: "2024-03-25T01:15:50.910",
            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: 7.8,
                        baseSeverity: "HIGH",
                        confidentialityImpact: "HIGH",
                        integrityImpact: "HIGH",
                        privilegesRequired: "LOW",
                        scope: "UNCHANGED",
                        userInteraction: "NONE",
                        vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        version: "3.1",
                     },
                     exploitabilityScore: 1.8,
                     impactScore: 5.9,
                     source: "nvd@nist.gov",
                     type: "Primary",
                  },
               ],
            },
            published: "2021-05-11T23:15:09.013",
            references: [
               {
                  source: "cve@mitre.org",
                  tags: [
                     "Mailing List",
                     "Third Party Advisory",
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                  url: "http://www.openwall.com/lists/oss-security/2021/05/12/1",
               },
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                  source: "cve@mitre.org",
                  tags: [
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                  tags: [
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                  url: "http://www.openwall.com/lists/oss-security/2021/05/28/1",
               },
               {
                  source: "cve@mitre.org",
                  url: "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d",
               },
               {
                  source: "cve@mitre.org",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/",
               },
               {
                  source: "cve@mitre.org",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/",
               },
               {
                  source: "cve@mitre.org",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/",
               },
               {
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                  tags: [
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                     "Third Party Advisory",
                  ],
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               },
            ],
            sourceIdentifier: "cve@mitre.org",
            vulnStatus: "Modified",
            weaknesses: [
               {
                  description: [
                     {
                        lang: "en",
                        value: "CWE-416",
                     },
                  ],
                  source: "nvd@nist.gov",
                  type: "Primary",
               },
            ],
         },
      },
   },
}


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