SUSE-SU-2026:4654-1: important: Security update for glibc

[SLE-SECURITY-UPDATES]

# Security update for glibc

Announcement ID: SUSE-SU-2026:4654-1  
Release Date: 2026-10-13T16:56:09Z  
Rating: important  
References:

  * bsc#1282449
  * bsc#1282509

  
Cross-References:

  * CVE-2026-86805
  * CVE-2026-89092

  
CVSS scores:

  * CVE-2026-86805 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-86805 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-86805 ( NVD ):  6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L
  * CVE-2026-89092 ( SUSE ):  6.0
    CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-89092 ( SUSE ):  5.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-89092 ( NVD ):  4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for glibc fixes the following issues:

  * CVE-2026-86805: TOCTOU race condition in the dynamic loader allows local
    attackers to escalate privileges (bsc#1282509).
  * CVE-2026-89092: nscd stack overflow leads to degraded DNS resolution
    (bsc#1282449).

## 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  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-4654

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-4654

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * nscd-2.22-114.55.1
    * glibc-locale-2.22-114.55.1
    * glibc-profile-2.22-114.55.1
    * glibc-devel-2.22-114.55.1
    * glibc-devel-debuginfo-2.22-114.55.1
    * glibc-debuginfo-2.22-114.55.1
    * glibc-locale-debuginfo-2.22-114.55.1
    * nscd-debuginfo-2.22-114.55.1
    * glibc-devel-static-2.22-114.55.1
    * glibc-debugsource-2.22-114.55.1
    * glibc-2.22-114.55.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (s390x x86_64)
    * glibc-32bit-2.22-114.55.1
    * glibc-devel-32bit-2.22-114.55.1
    * glibc-locale-32bit-2.22-114.55.1
    * glibc-profile-32bit-2.22-114.55.1
    * glibc-devel-debuginfo-32bit-2.22-114.55.1
    * glibc-locale-debuginfo-32bit-2.22-114.55.1
    * glibc-debuginfo-32bit-2.22-114.55.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
    * glibc-i18ndata-2.22-114.55.1
    * glibc-html-2.22-114.55.1
    * glibc-info-2.22-114.55.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * nscd-2.22-114.55.1
    * glibc-32bit-2.22-114.55.1
    * glibc-devel-32bit-2.22-114.55.1
    * glibc-locale-2.22-114.55.1
    * glibc-locale-32bit-2.22-114.55.1
    * glibc-profile-2.22-114.55.1
    * glibc-devel-debuginfo-32bit-2.22-114.55.1
    * glibc-devel-2.22-114.55.1
    * glibc-devel-debuginfo-2.22-114.55.1
    * glibc-debuginfo-2.22-114.55.1
    * glibc-locale-debuginfo-2.22-114.55.1
    * glibc-profile-32bit-2.22-114.55.1
    * glibc-devel-static-2.22-114.55.1
    * nscd-debuginfo-2.22-114.55.1
    * glibc-debugsource-2.22-114.55.1
    * glibc-locale-debuginfo-32bit-2.22-114.55.1
    * glibc-debuginfo-32bit-2.22-114.55.1
    * glibc-2.22-114.55.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * glibc-i18ndata-2.22-114.55.1
    * glibc-html-2.22-114.55.1
    * glibc-info-2.22-114.55.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-86805.html
  * https://www.suse.com/security/cve/CVE-2026-89092.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1282449
  * https://bugzilla.suse.com/show_bug.cgi?id=1282509

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