Issued at: 2025-11-21
Updated at: 2025-11-23
Synopsis
Important: runc security update
Description
The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.
Security Fix(es):
* runc: container escape via 'masked path' abuse due to mount race conditions (CVE-2025-31133)
* runc: container escape with malicious config due to /dev/console mount and related races (CVE-2025-52565)
* runc: container escape and denial of service due to arbitrary write gadgets and procfs write redirects (CVE-2025-52881)
For 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.