Security update for glibc

Announcement ID: SUSE-SU-2026:20178-1
Release Date: 2026-01-29T16:16:14Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-0395 ( SUSE ): 2.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  • CVE-2025-0395 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
  • CVE-2025-0395 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-15281 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-15281 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-15281 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-0861 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-0861 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-0861 ( NVD ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-0915 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  • CVE-2026-0915 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • CVE-2026-0915 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:
  • SUSE Linux Micro 6.2
  • SUSE Linux Micro Extras 6.2

An update that solves four vulnerabilities and has one fix can now be installed.

Description:

This update for glibc fixes the following issues:

Security fixes:

  • CVE-2025-0395: Fixed buffer overflow in the assert() function (bsc#1236282).
  • CVE-2026-0861: Fixed inadequate size check in the memalign suite may result in an integer overflow (bsc#1256766).
  • CVE-2026-0915: Fixed uninitialized stack buffer used as DNS query name when net==0 in _nss_dns_getnetbyaddr_r (bsc#1256822).
  • CVE-2025-15281: Fixed uninitialized memory may cause the process abort (bsc#1257005).

Other fixes:

  • NPTL: Optimize trylock for high cache contention workloads (bsc#1256436)

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 6.2
    zypper in -t patch SUSE-SL-Micro-6.2-218=1
  • SUSE Linux Micro Extras 6.2
    zypper in -t patch SUSE-SL-Micro-6.2-218=1

Package List:

  • SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    • glibc-locale-base-2.40-160000.3.1
    • glibc-2.40-160000.3.1
    • glibc-debugsource-2.40-160000.3.1
    • glibc-debuginfo-2.40-160000.3.1
    • glibc-devel-2.40-160000.3.1
    • glibc-locale-2.40-160000.3.1
    • glibc-devel-debuginfo-2.40-160000.3.1
  • SUSE Linux Micro 6.2 (aarch64 x86_64)
    • glibc-gconv-modules-extra-debuginfo-2.40-160000.3.1
    • glibc-gconv-modules-extra-2.40-160000.3.1
  • SUSE Linux Micro Extras 6.2 (aarch64 ppc64le s390x x86_64)
    • glibc-gconv-modules-extra-debuginfo-2.40-160000.3.1
    • glibc-debuginfo-2.40-160000.3.1
    • glibc-gconv-modules-extra-2.40-160000.3.1
    • glibc-debugsource-2.40-160000.3.1

References: