{"id":"RLSA-2025:20957","summary":"Important: runc security update","details":"The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.\n\nSecurity Fix(es):\n\n* runc: container escape via 'masked path' abuse due to mount race conditions (CVE-2025-31133)\n\n* runc: container escape with malicious config due to /dev/console mount and related races (CVE-2025-52565)\n\n* runc: container escape and denial of service due to arbitrary write gadgets and procfs write redirects (CVE-2025-52881)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-03-11T06:34:34.412991Z","published":"2025-11-21T18:13:51.682496Z","upstream":["CVE-2025-31133","CVE-2025-52565","CVE-2025-52881"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2025:20957"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2404705"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2404708"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2404715"}],"affected":[{"package":{"name":"runc","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/runc?distro=rocky-linux-9&epoch=4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:1.3.0-4.el9_7"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2025:20957.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}