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SUSE: runc Important Container Escape Fixes CVE-2025-31133, 52565, 52881

suse
Calendar Grey November 5, 2025
Dist Suse Esm H88
Important SUSE update addresses multiple container escape issues and ensures high security for affected products.
* bsc#1252232 Cross-References: * CVE-2025-31133 * CVE-2025-52565

Summary

## This update for runc fixes the following issues: * CVE-2025-31133: Fixed container escape via 'masked path' abuse due to mount race conditions (bsc#1252232). * CVE-2025-52565: Fixed container escape with malicious config due to /dev/console mount and related races (bsc#1252232). * CVE-2025-52881: Fixed container escape and denial of service due to arbitrary write gadgets and procfs write redirects (bsc#1252232). Update to runc v1.2.7. * Upstream changelog is available from ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server 12 SP5 LTSS

Topics%20covered

Topics Covered

security advisory denial of service SuSE important runc container escape

References

* bsc#1252232

Cross-

* CVE-2025-31133

* CVE-2025-52565

* CVE-2025-52881

CVSS scores:

* CVE-2025-31133 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

* CVE-2025-31133 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2025-52565 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

* CVE-2025-52565 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2025-52881 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

* CVE-2025-52881 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products:

* SUSE Linux Enterprise High Performance Computing 12 SP5

* SUSE Linux Enterprise Server 12 SP5

* SUSE Linux Enterprise Server 12 SP5 LTSS

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:3951-1
Release Date: 2025-11-05T10:23:34Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important runc container escape

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