Vulnerability-Lookup

UBUNTU-CVE-2023-25809 (CVE-2023-25809)

Vulnerability from osv_ubuntu – Published: 2023-03-29 19:15 – Updated: 2025-09-08 16:56 – Source website

Details

runc is a CLI tool for spawning and running containers according to the OCI specification. In affected versions it was found that rootless runc makes /sys/fs/cgroup writable in following conditons: 1. when runc is executed inside the user namespace, and the config.json does not specify the cgroup namespace to be unshared (e.g.., (docker|podman|nerdctl) run --cgroupns=host, with Rootless Docker/Podman/nerdctl) or 2. when runc is executed outside the user namespace, and /sys is mounted with rbind, ro (e.g., runc spec --rootless; this condition is very rare). A container may gain the write access to user-owned cgroup hierarchy /sys/fs/cgroup/user.slice/... on the host . Other users's cgroup hierarchies are not affected. Users are advised to upgrade to version 1.1.5. Users unable to upgrade may unshare the cgroup namespace ((docker|podman|nerdctl) run --cgroupns=private). This is the default behavior of Docker/Podman/nerdctl on cgroup v2 hosts. or add /sys/fs/cgroup to maskedPaths.

Severity

6.3 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

5.0 (Medium)


                    
                      CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-25809	REPORT
	https://github.com/opencontainers/runc/security/a…	REPORT
	https://github.com/opencontainers/runc/commit/0e6…	REPORT
	https://ubuntu.com/security/notices/USN-6088-1	ADVISORY
	https://ubuntu.com/security/notices/USN-6088-2	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2023-25809	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.8+dfsg-2",
        "0.1.1-0ubuntu5~16.04",
        "1.0.0~rc1-0ubuntu1~16.04",
        "1.0.0~rc1-0ubuntu2~16.04.1",
        "1.0.0~rc1-0ubuntu2~16.04.1.1",
        "1.0.0~rc2-0ubuntu2~16.04.1",
        "1.0.0~rc2+docker1.12.6-0ubuntu1~16.04.1",
        "1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1",
        "1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.2",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.3",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm1",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.1.4-0ubuntu1~18.04.2"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.1.4-0ubuntu1~18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.1.4-0ubuntu1~18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.4-0ubuntu1~18.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0~rc2+docker1.13.1-0ubuntu1",
        "1.0.0~rc4+dfsg1-2",
        "1.0.0~rc4+dfsg1-6",
        "1.0.0~rc4+dfsg1-6ubuntu0.18.04.1",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~18.04.1",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~18.04.2",
        "1.0.0~rc10-0ubuntu1~18.04.1",
        "1.0.0~rc10-0ubuntu1~18.04.2",
        "1.0.0~rc93-0ubuntu1~18.04.1",
        "1.0.0~rc93-0ubuntu1~18.04.2",
        "1.0.0~rc95-0ubuntu1~18.04.1",
        "1.0.0~rc95-0ubuntu1~18.04.2",
        "1.0.1-0ubuntu2~18.04.1",
        "1.1.0-0ubuntu1~18.04.1",
        "1.1.4-0ubuntu1~18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.1.4-0ubuntu1~20.04.3"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.1.4-0ubuntu1~20.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.1.4-0ubuntu1~20.04.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.4-0ubuntu1~20.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0~rc8+git20190923.3e425f80-0ubuntu1",
        "1.0.0~rc10-0ubuntu1",
        "1.0.0~rc93-0ubuntu1~20.04.1",
        "1.0.0~rc93-0ubuntu1~20.04.2",
        "1.0.0~rc95-0ubuntu1~20.04.1",
        "1.0.0~rc95-0ubuntu1~20.04.2",
        "1.0.1-0ubuntu2~20.04.1",
        "1.1.0-0ubuntu1~20.04.1",
        "1.1.0-0ubuntu1~20.04.2",
        "1.1.4-0ubuntu1~20.04.1",
        "1.1.4-0ubuntu1~20.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.1.4-0ubuntu1~22.04.3"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.1.4-0ubuntu1~22.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.1.4-0ubuntu1~22.04.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.4-0ubuntu1~22.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.1-0ubuntu2",
        "1.0.1-0ubuntu3",
        "1.0.3-0ubuntu1",
        "1.1.0-0ubuntu1",
        "1.1.0-0ubuntu1.1",
        "1.1.4-0ubuntu1~22.04.1",
        "1.1.4-0ubuntu1~22.04.2"
      ]
    }
  ],
  "aliases": [],
  "details": "runc is a CLI tool for spawning and running containers according to the OCI specification. In affected versions it was found that rootless runc makes `/sys/fs/cgroup` writable in following conditons: 1. when runc is executed inside the user namespace, and the `config.json` does not specify the cgroup namespace to be unshared (e.g.., `(docker|podman|nerdctl) run --cgroupns=host`, with Rootless Docker/Podman/nerdctl) or 2. when runc is executed outside the user namespace, and `/sys` is mounted with `rbind, ro` (e.g., `runc spec --rootless`; this condition is very rare). A container may gain the write access to user-owned cgroup hierarchy `/sys/fs/cgroup/user.slice/...` on the host . Other users\u0027s cgroup hierarchies are not affected. Users are advised to upgrade to version 1.1.5. Users unable to upgrade may unshare the cgroup namespace (`(docker|podman|nerdctl) run --cgroupns=private)`. This is the default behavior of Docker/Podman/nerdctl on cgroup v2 hosts. or add `/sys/fs/cgroup` to `maskedPaths`.",
  "id": "UBUNTU-CVE-2023-25809",
  "modified": "2025-09-08T16:56:10Z",
  "published": "2023-03-29T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-25809"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-m8cg-xc2p-r3fc"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/opencontainers/runc/commit/0e6b818a2b0d24fdb6697614e5c5f115bbe8e3a5"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6088-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6088-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-25809"
    }
  ],
  "related": [
    "USN-6088-1",
    "USN-6088-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-25809"
  ]
}

CVE-2023-25809 (GCVE-0-2023-25809)

Vulnerability from cvelistv5 – Published: 2023-03-29 18:22 – Updated: 2025-02-12 16:02

Title

rootless: `/sys/fs/cgroup` is writable when cgroupns isn't unshared in runc

Summary

runc is a CLI tool for spawning and running containers according to the OCI specification. In affected versions it was found that rootless runc makes `/sys/fs/cgroup` writable in following conditons: 1. when runc is executed inside the user namespace, and the `config.json` does not specify the cgroup namespace to be unshared (e.g.., `(docker|podman|nerdctl) run --cgroupns=host`, with Rootless Docker/Podman/nerdctl) or 2. when runc is executed outside the user namespace, and `/sys` is mounted with `rbind, ro` (e.g., `runc spec --rootless`; this condition is very rare). A container may gain the write access to user-owned cgroup hierarchy `/sys/fs/cgroup/user.slice/...` on the host . Other users's cgroup hierarchies are not affected. Users are advised to upgrade to version 1.1.5. Users unable to upgrade may unshare the cgroup namespace (`(docker|podman|nerdctl) run --cgroupns=private)`. This is the default behavior of Docker/Podman/nerdctl on cgroup v2 hosts. or add `/sys/fs/cgroup` to `maskedPaths`.

Severity

5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-12 16:02 UTC

CWE

CWE-281 - Improper Preservation of Permissions

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/opencontainers/runc/security/a…	x_refsource_CONFIRM
https://github.com/opencontainers/runc/commit/0d6…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
opencontainers	runc	Affected: < 1.1.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T11:32:12.344Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/opencontainers/runc/security/advisories/GHSA-m8cg-xc2p-r3fc",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-m8cg-xc2p-r3fc"
          },
          {
            "name": "https://github.com/opencontainers/runc/commit/0d62b950e60f6980b54fe3bafd9a9c608dc1df17",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/opencontainers/runc/commit/0d62b950e60f6980b54fe3bafd9a9c608dc1df17"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-25809",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-12T16:02:19.074002Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-12T16:02:24.090Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "runc",
          "vendor": "opencontainers",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.1.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "runc is a CLI tool for spawning and running containers according to the OCI specification. In affected versions it was found that rootless runc makes `/sys/fs/cgroup` writable in following conditons: 1. when runc is executed inside the user namespace, and the `config.json` does not specify the cgroup namespace to be unshared (e.g.., `(docker|podman|nerdctl) run --cgroupns=host`, with Rootless Docker/Podman/nerdctl) or 2. when runc is executed outside the user namespace, and `/sys` is mounted with `rbind, ro` (e.g., `runc spec --rootless`; this condition is very rare). A container may gain the write access to user-owned cgroup hierarchy `/sys/fs/cgroup/user.slice/...` on the host . Other users\u0027s cgroup hierarchies are not affected. Users are advised to upgrade to version 1.1.5. Users unable to upgrade may unshare the cgroup namespace (`(docker|podman|nerdctl) run --cgroupns=private)`. This is the default behavior of Docker/Podman/nerdctl on cgroup v2 hosts. or add `/sys/fs/cgroup` to `maskedPaths`.\n"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-281",
              "description": "CWE-281: Improper Preservation of Permissions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-03-29T18:22:56.875Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/opencontainers/runc/security/advisories/GHSA-m8cg-xc2p-r3fc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-m8cg-xc2p-r3fc"
        },
        {
          "name": "https://github.com/opencontainers/runc/commit/0d62b950e60f6980b54fe3bafd9a9c608dc1df17",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/opencontainers/runc/commit/0d62b950e60f6980b54fe3bafd9a9c608dc1df17"
        }
      ],
      "source": {
        "advisory": "GHSA-m8cg-xc2p-r3fc",
        "discovery": "UNKNOWN"
      },
      "title": "rootless: `/sys/fs/cgroup` is writable when cgroupns isn\u0027t unshared in runc"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-25809",
    "datePublished": "2023-03-29T18:22:56.875Z",
    "dateReserved": "2023-02-15T16:34:48.772Z",
    "dateUpdated": "2025-02-12T16:02:24.090Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

USN-6088-1 (UBUNTU-CVE-2023-25809)

Vulnerability from osv_ubuntu – Published: 2023-05-18 10:03 – Updated: 2026-02-10 04:43 – Source website

Summary

runc vulnerabilities

Details

It was discovered that runC incorrectly made /sys/fs/cgroup writable when in rootless mode. An attacker could possibly use this issue to escalate privileges. (CVE-2023-25809)

It was discovered that runC incorrectly performed access control when mounting /proc to non-directories. An attacker could possibly use this issue to escalate privileges. (CVE-2023-27561)

It was discovered that runC incorrectly handled /proc and /sys mounts inside a container. An attacker could possibly use this issue to bypass AppArmor, and potentially SELinux. (CVE-2023-28642)

References

URL

Type

	https://ubuntu.com/security/notices/USN-6088-1	ADVISORY
	https://ubuntu.com/security/CVE-2023-25809	REPORT
	https://ubuntu.com/security/CVE-2023-27561	REPORT
	https://ubuntu.com/security/CVE-2023-28642	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-25809",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-27561",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-28642",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.1.4-0ubuntu1~18.04.2"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.1.4-0ubuntu1~18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.1.4-0ubuntu1~18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.4-0ubuntu1~18.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0~rc2+docker1.13.1-0ubuntu1",
        "1.0.0~rc4+dfsg1-2",
        "1.0.0~rc4+dfsg1-6",
        "1.0.0~rc4+dfsg1-6ubuntu0.18.04.1",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~18.04.1",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~18.04.2",
        "1.0.0~rc10-0ubuntu1~18.04.1",
        "1.0.0~rc10-0ubuntu1~18.04.2",
        "1.0.0~rc93-0ubuntu1~18.04.1",
        "1.0.0~rc93-0ubuntu1~18.04.2",
        "1.0.0~rc95-0ubuntu1~18.04.1",
        "1.0.0~rc95-0ubuntu1~18.04.2",
        "1.0.1-0ubuntu2~18.04.1",
        "1.1.0-0ubuntu1~18.04.1",
        "1.1.4-0ubuntu1~18.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-25809",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-27561",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-28642",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.1.4-0ubuntu1~20.04.3"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.1.4-0ubuntu1~20.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.1.4-0ubuntu1~20.04.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.4-0ubuntu1~20.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0~rc8+git20190923.3e425f80-0ubuntu1",
        "1.0.0~rc10-0ubuntu1",
        "1.0.0~rc93-0ubuntu1~20.04.1",
        "1.0.0~rc93-0ubuntu1~20.04.2",
        "1.0.0~rc95-0ubuntu1~20.04.1",
        "1.0.0~rc95-0ubuntu1~20.04.2",
        "1.0.1-0ubuntu2~20.04.1",
        "1.1.0-0ubuntu1~20.04.1",
        "1.1.0-0ubuntu1~20.04.2",
        "1.1.4-0ubuntu1~20.04.1",
        "1.1.4-0ubuntu1~20.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-25809",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-27561",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-28642",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.1.4-0ubuntu1~22.04.3"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.1.4-0ubuntu1~22.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.1.4-0ubuntu1~22.04.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.4-0ubuntu1~22.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.1-0ubuntu2",
        "1.0.1-0ubuntu3",
        "1.0.3-0ubuntu1",
        "1.1.0-0ubuntu1",
        "1.1.0-0ubuntu1.1",
        "1.1.4-0ubuntu1~22.04.1",
        "1.1.4-0ubuntu1~22.04.2"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that runC incorrectly made /sys/fs/cgroup\nwritable when in rootless mode. An attacker could possibly\nuse this issue to escalate privileges. (CVE-2023-25809)\n\nIt was discovered that runC incorrectly performed access control when\nmounting /proc to non-directories. An attacker could possibly use\nthis issue to escalate privileges. (CVE-2023-27561)\n\nIt was discovered that runC incorrectly handled /proc and \n/sys mounts inside a container. An attacker could possibly\nuse this issue to bypass AppArmor, and potentially SELinux.\n(CVE-2023-28642)\n",
  "id": "USN-6088-1",
  "modified": "2026-02-10T04:43:08Z",
  "published": "2023-05-18T10:03:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6088-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-25809"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-27561"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-28642"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "runc vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-25809",
    "UBUNTU-CVE-2023-27561",
    "UBUNTU-CVE-2023-28642"
  ]
}

USN-6088-2 (UBUNTU-CVE-2019-19921)

Vulnerability from osv_ubuntu – Published: 2023-05-23 14:07 – Updated: 2026-06-25 10:46 – Source website

Summary

runc vulnerabilities

Details

USN-6088-1 fixed vulnerabilities in runC. This update provides the corresponding updates for Ubuntu 16.04 LTS.

It was discovered that runC incorrectly performed access control when mounting /proc to non-directories. An attacker could possibly use this issue to escalate privileges. (CVE-2019-19921)

Felix Wilhelm discovered that runC incorrecly handled netlink messages. An attacker could possibly use this issue to escalate privileges. (CVE-2021-43784)

Andrew G. Morgan discovered that runC incorrectly set inherited process capabilities inside the container. An attacker could possibly use this issue to escalate privileges. (CVE-2022-29162)

Original advisory details:

It was discovered that runC incorrectly made /sys/fs/cgroup writable when in rootless mode. An attacker could possibly use this issue to escalate privileges. (CVE-2023-25809)

It was discovered that runC incorrectly performed access control when mounting /proc to non-directories. An attacker could possibly use this issue to escalate privileges. (CVE-2023-27561)

It was discovered that runC incorrectly handled /proc and /sys mounts inside a container. An attacker could possibly use this issue to bypass AppArmor, and potentially SELinux. (CVE-2023-28642)

References

URL

Type

	https://ubuntu.com/security/notices/USN-6088-2	ADVISORY
	https://ubuntu.com/security/CVE-2019-19921	REPORT
	https://ubuntu.com/security/CVE-2021-43784	REPORT
	https://ubuntu.com/security/CVE-2022-29162	REPORT
	https://ubuntu.com/security/CVE-2023-25809	REPORT
	https://ubuntu.com/security/CVE-2023-27561	REPORT
	https://ubuntu.com/security/CVE-2023-28642	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-19921",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-43784",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-29162",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-25809",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-27561",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-28642",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.8+dfsg-2",
        "0.1.1-0ubuntu5~16.04",
        "1.0.0~rc1-0ubuntu1~16.04",
        "1.0.0~rc1-0ubuntu2~16.04.1",
        "1.0.0~rc1-0ubuntu2~16.04.1.1",
        "1.0.0~rc2-0ubuntu2~16.04.1",
        "1.0.0~rc2+docker1.12.6-0ubuntu1~16.04.1",
        "1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1",
        "1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.2",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.3",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm1",
        "1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm2"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-6088-1 fixed vulnerabilities in runC. This update provides\nthe corresponding updates for Ubuntu 16.04 LTS.\n\nIt was discovered that runC incorrectly performed access control when\nmounting /proc to non-directories. An attacker could possibly use\nthis issue to escalate privileges.\n(CVE-2019-19921)\n\nFelix Wilhelm discovered that runC incorrecly handled netlink \nmessages. An attacker could possibly use\nthis issue to escalate privileges. (CVE-2021-43784)\n\nAndrew G. Morgan discovered that runC incorrectly set\ninherited process capabilities inside the container.\nAn attacker could possibly use this issue to\nescalate privileges. (CVE-2022-29162)\n\nOriginal advisory details:\n\n It was discovered that runC incorrectly made /sys/fs/cgroup\n writable when in rootless mode. An attacker could possibly\n use this issue to escalate privileges. (CVE-2023-25809)\n \n It was discovered that runC incorrectly performed access control when\n mounting /proc to non-directories. An attacker could possibly use\n this issue to escalate privileges. (CVE-2023-27561)\n \n It was discovered that runC incorrectly handled /proc and \n /sys mounts inside a container. An attacker could possibly\n use this issue to bypass AppArmor, and potentially SELinux.\n (CVE-2023-28642)\n",
  "id": "USN-6088-2",
  "modified": "2026-06-25T10:46:13Z",
  "published": "2023-05-23T14:07:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6088-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19921"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-43784"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-29162"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-25809"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-27561"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-28642"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "runc vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-19921",
    "UBUNTU-CVE-2021-43784",
    "UBUNTU-CVE-2022-29162",
    "UBUNTU-CVE-2023-25809",
    "UBUNTU-CVE-2023-27561",
    "UBUNTU-CVE-2023-28642"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

UBUNTU-CVE-2023-25809 (CVE-2023-25809)

CVE-2023-25809 (GCVE-0-2023-25809)

USN-6088-1 (UBUNTU-CVE-2023-25809)

USN-6088-2 (UBUNTU-CVE-2019-19921)

Tags

Sightings

Nomenclature

Related by attack behaviour