{"id":"ALSA-2025:19927","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  * runc: container escape with malicious config due to /dev/console mount and related races (CVE-2025-52565)\n  * runc: container escape and denial of service due to arbitrary write gadgets and procfs write redirects (CVE-2025-52881)\n\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.\n","modified":"2026-01-30T01:25:06.726541Z","published":"2025-11-07T00:00:00Z","related":["CVE-2025-31133","CVE-2025-52565","CVE-2025-52881"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2025:19927"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-31133"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-52565"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-52881"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2404705"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2404708"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2404715"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2025-19927.html"}],"affected":[{"package":{"name":"runc","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/runc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:1.2.5-3.el9_6"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2025:19927.json"}}],"schema_version":"1.7.3"}