{
  "advisories": [
    {
      "id": "DLA-2843-1",
      "source": "dla",
      "title": "linux security update",
      "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"
    },
    {
      "id": "EUVD-2021-3539",
      "source": "euvd",
      "title": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel",
      "url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-3539"
    },
    {
      "id": "USN-5361-1",
      "source": "usn",
      "title": "Linux kernel vulnerabilities",
      "url": "https://ubuntu.com/security/notices/USN-5361-1"
    },
    {
      "id": "USN-7720-1",
      "source": "usn",
      "title": "Linux kernel vulnerabilities",
      "url": "https://ubuntu.com/security/notices/USN-7720-1"
    }
  ],
  "cve": "CVE-2021-0920",
  "epss": {
    "score": 0.0082
  },
  "kev": {
    "dateAdded": "2022-05-23T00:00:00+00:00",
    "dueDate": "2022-06-13T00:00:00+00:00"
  },
  "mitre": {
    "cpes": [],
    "created": "2021-12-15T18:05:31+00:00",
    "description": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {},
      "cvssV4_0": {}
    },
    "mitre_repo_path": "cves/2021/0xxx/CVE-2021-0920.json",
    "references": [
      "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html",
      "https://source.android.com/security/bulletin/2021-11-01"
    ],
    "title": null,
    "updated": "2025-10-21T23:15:50.498000+00:00",
    "vendors": [],
    "weaknesses": []
  },
  "nvd": {
    "cpes": [
      "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
      "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*"
    ],
    "created": "2021-12-15T19:15:11.017000+00:00",
    "description": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel",
    "metrics": {
      "cvssV2_0": {
        "score": 6.9,
        "vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C"
      },
      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 6.4,
        "vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"
      },
      "cvssV4_0": {}
    },
    "nvd_repo_path": "2021/CVE-2021-0920.json",
    "references": [
      "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html",
      "https://source.android.com/security/bulletin/2021-11-01",
      "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920"
    ],
    "title": null,
    "updated": "2026-06-17T03:30:39.430000+00:00",
    "vendors": [
      "debian",
      "debian$PRODUCT$debian_linux",
      "google",
      "google$PRODUCT$android",
      "linux",
      "linux$PRODUCT$linux_kernel"
    ],
    "weaknesses": [
      "CWE-362",
      "CWE-416"
    ]
  },
  "opencve": {
    "changes": [
      {
        "created": "2024-08-14T00:45:00+00:00",
        "data": [
          {
            "details": {
              "added": [
                "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
              ],
              "removed": []
            },
            "type": "references"
          }
        ],
        "id": "abf4d28e-dd62-4e69-94af-e01bcce123a8"
      },
      {
        "created": "2025-02-04T19:15:00+00:00",
        "data": [
          {
            "details": {
              "added": {
                "kev": {
                  "dateAdded": "2022-05-23"
                },
                "ssvc": {
                  "options": {
                    "Automatable": "no",
                    "Exploitation": "active",
                    "Technical Impact": "total"
                  },
                  "version": "2.0.3"
                }
              },
              "removed": {},
              "updated": {}
            },
            "type": "metrics"
          }
        ],
        "id": "123b420f-0f61-441d-8a44-bf6e407dbbfc"
      },
      {
        "created": "2025-04-04T18:15:00+00:00",
        "data": [
          {
            "details": [
              "linux",
              "linux$PRODUCT$linux_kernel"
            ],
            "type": "first_time"
          },
          {
            "details": {
              "added": [
                "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*",
                "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*",
                "cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*",
                "cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*"
              ],
              "removed": [
                "cpe:2.3:o:google:android:*:*:*:*:*:*:*:*"
              ]
            },
            "type": "cpes"
          },
          {
            "details": {
              "added": [
                "linux",
                "linux$PRODUCT$linux_kernel"
              ],
              "removed": []
            },
            "type": "vendors"
          }
        ],
        "id": "cc5dd341-6613-4dba-9b65-593d81d7cabb"
      },
      {
        "created": "2025-10-21T19:30:00+00:00",
        "data": [
          {
            "details": {
              "added": [
                "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920"
              ],
              "removed": []
            },
            "type": "references"
          }
        ],
        "id": "eb039640-c43d-48a2-802f-110c811b852b"
      },
      {
        "created": "2025-10-21T20:30:00+00:00",
        "data": [
          {
            "details": {
              "added": [],
              "removed": [
                "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920"
              ]
            },
            "type": "references"
          }
        ],
        "id": "015334a6-3d2a-4165-8d5a-b119d92aa680"
      },
      {
        "created": "2025-10-22T00:30:00+00:00",
        "data": [
          {
            "details": {
              "added": [
                "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920"
              ],
              "removed": []
            },
            "type": "references"
          }
        ],
        "id": "b839bbde-07c0-49ac-9b83-eaf3d5ba3129"
      }
    ],
    "cpes": {
      "data": [
        "cpe:/a:redhat:enterprise_linux:8::nfv",
        "cpe:/a:redhat:rhel_eus:8.2::nfv",
        "cpe:/a:redhat:rhel_eus:8.4::nfv",
        "cpe:/a:redhat:rhel_extras_rt:7",
        "cpe:/o:redhat:enterprise_linux:7",
        "cpe:/o:redhat:enterprise_linux:7::hypervisor",
        "cpe:/o:redhat:enterprise_linux:8",
        "cpe:/o:redhat:rhel_aus:7.3",
        "cpe:/o:redhat:rhel_aus:7.4",
        "cpe:/o:redhat:rhel_aus:7.6",
        "cpe:/o:redhat:rhel_aus:7.7",
        "cpe:/o:redhat:rhel_e4s:7.6",
        "cpe:/o:redhat:rhel_e4s:7.7",
        "cpe:/o:redhat:rhel_e4s:8.1",
        "cpe:/o:redhat:rhel_els:6",
        "cpe:/o:redhat:rhel_eus:8.2",
        "cpe:/o:redhat:rhel_eus:8.4",
        "cpe:/o:redhat:rhel_tus:7.6",
        "cpe:/o:redhat:rhel_tus:7.7",
        "cpe:/o:redhat:rhev_hypervisor:4.4::el8",
        "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
        "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*",
        "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
        "cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*",
        "cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*",
        "cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*"
      ],
      "providers": [
        "nvd",
        "redhat"
      ]
    },
    "created": {
      "data": "2021-07-28T00:00:00+00:00",
      "provider": "redhat"
    },
    "description": {
      "data": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel",
      "provider": "mitre"
    },
    "metrics": {
      "cvssV2_0": {
        "data": {
          "score": 6.9,
          "vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C"
        },
        "provider": "nvd"
      },
      "cvssV3_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_1": {
        "data": {
          "score": 6.4,
          "vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"
        },
        "provider": "vulnrichment"
      },
      "cvssV4_0": {
        "data": {},
        "provider": null
      },
      "epss": {
        "data": {
          "score": 0.0082
        },
        "provider": "first"
      },
      "kev": {
        "data": {
          "dateAdded": "2022-05-23T00:00:00+00:00",
          "dueDate": "2022-06-13T00:00:00+00:00"
        },
        "provider": "cisa"
      },
      "ssvc": {
        "data": {
          "options": {
            "Automatable": "no",
            "Exploitation": "active",
            "Technical Impact": "total"
          },
          "version": "2.0.3"
        },
        "provider": "vulnrichment"
      },
      "threat_severity": {
        "data": "Important",
        "provider": "redhat"
      }
    },
    "references": {
      "data": [
        "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbcf01128d0a92e131bd09f1688fe032480b65ca",
        "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2021-0920",
        "https://source.android.com/security/bulletin/2021-11-01",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920",
        "https://www.cve.org/CVERecord?id=CVE-2021-0920"
      ],
      "providers": [
        "mitre",
        "nvd",
        "redhat",
        "vulnrichment"
      ]
    },
    "title": {
      "data": "kernel: Use After Free in unix_gc() which could result in a local privilege escalation",
      "provider": "redhat"
    },
    "updated": {
      "data": "2025-10-23T14:53:26.187000+00:00",
      "provider": "nvd"
    },
    "vendors": {
      "data": [
        "debian",
        "debian$PRODUCT$debian_linux",
        "google",
        "google$PRODUCT$android",
        "linux",
        "linux$PRODUCT$linux_kernel",
        "redhat",
        "redhat$PRODUCT$enterprise_linux",
        "redhat$PRODUCT$rhel_aus",
        "redhat$PRODUCT$rhel_e4s",
        "redhat$PRODUCT$rhel_els",
        "redhat$PRODUCT$rhel_eus",
        "redhat$PRODUCT$rhel_extras_rt",
        "redhat$PRODUCT$rhel_tus",
        "redhat$PRODUCT$rhev_hypervisor"
      ],
      "providers": [
        "nvd",
        "redhat"
      ]
    },
    "weaknesses": {
      "data": [
        "CWE-362",
        "CWE-416"
      ],
      "providers": [
        "nvd",
        "redhat",
        "vulnrichment"
      ]
    }
  },
  "redhat": {
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8::nfv",
      "cpe:/a:redhat:rhel_eus:8.2::nfv",
      "cpe:/a:redhat:rhel_eus:8.4::nfv",
      "cpe:/a:redhat:rhel_extras_rt:7",
      "cpe:/o:redhat:enterprise_linux:7",
      "cpe:/o:redhat:enterprise_linux:7::hypervisor",
      "cpe:/o:redhat:enterprise_linux:8",
      "cpe:/o:redhat:rhel_aus:7.3",
      "cpe:/o:redhat:rhel_aus:7.4",
      "cpe:/o:redhat:rhel_aus:7.6",
      "cpe:/o:redhat:rhel_aus:7.7",
      "cpe:/o:redhat:rhel_e4s:7.6",
      "cpe:/o:redhat:rhel_e4s:7.7",
      "cpe:/o:redhat:rhel_e4s:8.1",
      "cpe:/o:redhat:rhel_els:6",
      "cpe:/o:redhat:rhel_eus:8.2",
      "cpe:/o:redhat:rhel_eus:8.4",
      "cpe:/o:redhat:rhel_tus:7.6",
      "cpe:/o:redhat:rhel_tus:7.7",
      "cpe:/o:redhat:rhev_hypervisor:4.4::el8"
    ],
    "created": "2021-07-28T00:00:00+00:00",
    "description": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 7.4,
        "vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
      },
      "threat_severity": "Important"
    },
    "redhat_repo_path": "2021/CVE-2021-0920.json",
    "references": [
      "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbcf01128d0a92e131bd09f1688fe032480b65ca",
      "https://nvd.nist.gov/vuln/detail/CVE-2021-0920",
      "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "https://www.cve.org/CVERecord?id=CVE-2021-0920"
    ],
    "title": "kernel: Use After Free in unix_gc() which could result in a local privilege escalation",
    "updated": "2021-07-28T00:00:00+00:00",
    "vendors": [
      "redhat",
      "redhat$PRODUCT$enterprise_linux",
      "redhat$PRODUCT$rhel_aus",
      "redhat$PRODUCT$rhel_e4s",
      "redhat$PRODUCT$rhel_els",
      "redhat$PRODUCT$rhel_eus",
      "redhat$PRODUCT$rhel_extras_rt",
      "redhat$PRODUCT$rhel_tus",
      "redhat$PRODUCT$rhev_hypervisor"
    ],
    "weaknesses": [
      "CWE-416"
    ]
  },
  "vulnrichment": {
    "cpes": [],
    "created": "2021-12-15T18:05:31+00:00",
    "description": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 6.4,
        "vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"
      },
      "cvssV4_0": {},
      "kev": {
        "dateAdded": "2022-05-23"
      },
      "ssvc": {
        "options": {
          "Automatable": "no",
          "Exploitation": "active",
          "Technical Impact": "total"
        },
        "version": "2.0.3"
      }
    },
    "references": [
      "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920"
    ],
    "title": null,
    "updated": "2025-02-04T19:03:46.630000+00:00",
    "vendors": [],
    "vulnrichment_repo_path": "2021/0xxx/CVE-2021-0920.json",
    "weaknesses": [
      "CWE-416"
    ]
  }
}