AlmaLinux alert ALSA-2025:20957 (runc)

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[Announce] [Security Advisory] ALSA-2025:20957: runc security update (Important)
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Wed, 19 Nov 2025 18:32:23 +0000
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<0100019a9d639f30-d7e2cebf-4247-45da-8c7c-372903c54830-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Important
Release date: 2025-11-19

Summary:

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.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/9/ALSA-2025-20957.html

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