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": {
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          {
            "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": {
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            "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"
          },
          {
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          },
          {
            "name": "FEDORA-2021-bae582b42c",
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/"
          },
          {
            "name": "FEDORA-2021-8832eab899",
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          },
          {
            "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": [
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                    "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"
              }
            ]
          },
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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 funci\u00f3n 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": 10.0,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
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                "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": [
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          },
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          }
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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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