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SUSE Linux Micro 6.0 Util-Linux Moderate TOCTOU Vulnerability 2026-21727-1

suse
Calendar Grey May 22, 2026
Dist Suse Esm H88
SUSE Linux Micro update fixes moderate security issue in util-linux relating to TOCTOU in loop device setup.
An update that solves one vulnerability can now be installed.

Summary

## This update for util-linux fixes the following issue * CVE-2026-27456: TOCTOU in the mount program when setting up loop devices (bsc#1261606). ## 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 Micro 6.0 zypper in -t patch SUSE-SLE-Micro-6.0-721=1 ## Package List: * SUSE Linux Micro 6.0 (aarch64 s390x x86_64) * util-linux-2.39.3-7.1 * libuuid1-debuginfo-2.39.3-7.1 * util-linux-systemd-debuginfo-2.39.3-7.1 * libsmartcols1-debuginfo-2.39.3-7.1 * libblkid1-2.39.3-7.1 * util-linux-systemd-2.39.3-7.1 * util-linux-debugsource-2.39.3-7.1 * util-linux-systemd-debugsource-2.39.3-7.1 * libfdisk1-2.39.3-7.1

Topics%20covered

Topics Covered

security advisory moderate mount TOCTOU SUSE Linux Micro

References

* bsc#1261606

Cross-

* CVE-2026-27456

CVSS scores:

* CVE-2026-27456 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

* CVE-2026-27456 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Products:

* SUSE Linux Micro 6.0

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-27456.html

* https://bugzilla.suse.com/show_bug.cgi?id=1261606

Announcement ID: SUSE-SU-2026:21727-1
Release Date: 2026-05-21T11:16:35Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate mount TOCTOU SUSE Linux Micro

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