{"id":"USN-7851-2","summary":"runc-app, runc-stable regression","details":"USN-7851-1 fixed vulnerabilities in runC. The introduction of a new\nupstream release has caused regressions in runc-app and runc-stable.\nThis update fixes the problem.\n\nOriginal advisory details:\n\n Lei Wang and Li Fubang discovered that runC incorrectly handled masked\n paths. An attacker could possibly replace a container's /dev/null\n with a symlink to some other procfs file and possibly escape a container.\n (CVE-2025-31133)\n\n Lei Wang and Li Fubang discovered that runC incorrectly handled the\n /dev/console bind-mounts. An attacker could potentially exploit this issue\n to build-mount a symlink and escape a container. (CVE-2025-52565)\n\n Li Fubang and Tõnis Tiigi discovered that the fix for CVE-2019-16884 was\n incomplete. An attacker could possibly use this issue to cause a denial of\n service or escape the container. (CVE-2025-52881)","modified":"2026-02-10T04:50:20Z","published":"2025-11-24T11:21:36Z","references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7851-2"},{"type":"REPORT","url":"https://launchpad.net/bugs/2130744"}],"affected":[{"package":{"name":"runc-app","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/runc-app@1.3.3-0ubuntu1~22.04.3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.3-0ubuntu1~22.04.3"}]}],"versions":["1.1.12-0ubuntu2~22.04.1","1.2.5-0ubuntu1~22.04.1","1.3.0-0ubuntu2~22.04.1","1.3.3-0ubuntu1~22.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"runc","binary_version":"1.3.3-0ubuntu1~22.04.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7851-2.json","cves_map":{"cves":[],"ecosystem":"Ubuntu:22.04:LTS"}}},{"package":{"name":"runc-app","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/runc-app@1.3.3-0ubuntu1~24.04.3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.3-0ubuntu1~24.04.3"}]}],"versions":["1.1.10-0ubuntu1","1.1.12-0ubuntu1","1.1.12-0ubuntu2","1.1.12-0ubuntu3","1.1.12-0ubuntu3.1","1.2.5-0ubuntu1~24.04.1","1.3.0-0ubuntu2~24.04.1","1.3.3-0ubuntu1~24.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"runc","binary_version":"1.3.3-0ubuntu1~24.04.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7851-2.json","cves_map":{"cves":[],"ecosystem":"Ubuntu:24.04:LTS"}}},{"package":{"name":"runc-app","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/runc-app@1.3.3-0ubuntu1~25.10.3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.3-0ubuntu1~25.10.3"}]}],"versions":["1.2.5-0ubuntu1","1.3.0-0ubuntu1","1.3.0-0ubuntu2","1.3.3-0ubuntu1~25.10.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"runc","binary_version":"1.3.3-0ubuntu1~25.10.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7851-2.json","cves_map":{"cves":[],"ecosystem":"Ubuntu:25.10"}}},{"package":{"name":"runc-stable","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/runc-stable@1.3.3-0ubuntu1~25.10.3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.3-0ubuntu1~25.10.3"}]}],"versions":["1.3.0-0ubuntu1","1.3.3-0ubuntu1~25.10.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"runc-stable","binary_version":"1.3.3-0ubuntu1~25.10.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7851-2.json","cves_map":{"cves":[],"ecosystem":"Ubuntu:25.10"}}}],"schema_version":"1.7.3"}