SUSE-SU-2026:2231-1: important: Security update for glibc

SLE-UPDATES null at suse.de
Thu Jun 4 16:38:14 UTC 2026 

# Security update for glibc

Announcement ID: SUSE-SU-2026:2231-1  
Release Date: 2026-06-03T10:57:32Z  
Rating: important  
References:

  * bsc#1261206
  * bsc#1262464
  * bsc#1262465

  
Cross-References:

  * CVE-2026-4046
  * CVE-2026-5450
  * CVE-2026-5928

  
CVSS scores:

  * CVE-2026-4046 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-4046 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-4046 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-5450 ( SUSE ):  5.1
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-5450 ( SUSE ):  5.9 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-5450 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-5928 ( SUSE ):  5.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-5928 ( SUSE ):  5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-5928 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * Basesystem Module 15-SP7
  * Development Tools Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for glibc fixes the following issues

  * CVE-2026-4046: assertion failure when converting inputs may be used to
    remotely crash an application (bsc#1261206).
  * CVE-2026-5450: stdio-common: scanf %mc pattern will cause heap overflow when
    width > 1024 (bsc#1262465).
  * CVE-2026-5928: libio: ungetwc could be used to leak data on special
    conditions (bsc#1262464).

## 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:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-2231=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2231=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2231=1

  * Development Tools Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-2231=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2231=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586 i686)
    * glibc-debuginfo-2.38-150600.14.49.1
    * glibc-profile-2.38-150600.14.49.1
    * glibc-2.38-150600.14.49.1
    * glibc-locale-base-debuginfo-2.38-150600.14.49.1
    * glibc-debugsource-2.38-150600.14.49.1
    * glibc-devel-2.38-150600.14.49.1
    * glibc-locale-base-2.38-150600.14.49.1
    * libnsl1-2.38-150600.14.49.1
    * glibc-devel-static-2.38-150600.14.49.1
    * glibc-locale-2.38-150600.14.49.1
    * libnsl1-debuginfo-2.38-150600.14.49.1
    * glibc-devel-debuginfo-2.38-150600.14.49.1
  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * glibc-extra-debuginfo-2.38-150600.14.49.1
    * glibc-utils-src-debugsource-2.38-150600.14.49.1
    * glibc-utils-debuginfo-2.38-150600.14.49.1
    * glibc-utils-2.38-150600.14.49.1
    * glibc-extra-2.38-150600.14.49.1
    * nscd-debuginfo-2.38-150600.14.49.1
    * nscd-2.38-150600.14.49.1
  * openSUSE Leap 15.6 (noarch)
    * glibc-lang-2.38-150600.14.49.1
    * glibc-html-2.38-150600.14.49.1
    * glibc-i18ndata-2.38-150600.14.49.1
    * glibc-info-2.38-150600.14.49.1
  * openSUSE Leap 15.6 (x86_64)
    * glibc-devel-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-locale-base-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-devel-static-32bit-2.38-150600.14.49.1
    * glibc-utils-32bit-2.38-150600.14.49.1
    * glibc-locale-base-32bit-2.38-150600.14.49.1
    * glibc-devel-32bit-2.38-150600.14.49.1
    * libnsl1-32bit-2.38-150600.14.49.1
    * glibc-profile-32bit-2.38-150600.14.49.1
    * glibc-utils-32bit-debuginfo-2.38-150600.14.49.1
    * libnsl1-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-32bit-2.38-150600.14.49.1
  * openSUSE Leap 15.6 (aarch64_ilp32)
    * libnsl1-64bit-debuginfo-2.38-150600.14.49.1
    * libnsl1-64bit-2.38-150600.14.49.1
    * glibc-utils-64bit-debuginfo-2.38-150600.14.49.1
    * glibc-devel-64bit-debuginfo-2.38-150600.14.49.1
    * glibc-locale-base-64bit-debuginfo-2.38-150600.14.49.1
    * glibc-locale-base-64bit-2.38-150600.14.49.1
    * glibc-utils-64bit-2.38-150600.14.49.1
    * glibc-devel-static-64bit-2.38-150600.14.49.1
    * glibc-64bit-2.38-150600.14.49.1
    * glibc-devel-64bit-2.38-150600.14.49.1
    * glibc-64bit-debuginfo-2.38-150600.14.49.1
    * glibc-profile-64bit-2.38-150600.14.49.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * glibc-2.38-150600.14.49.1
    * glibc-locale-base-2.38-150600.14.49.1
    * nscd-debuginfo-2.38-150600.14.49.1
    * libnsl1-debuginfo-2.38-150600.14.49.1
    * nscd-2.38-150600.14.49.1
    * glibc-extra-debuginfo-2.38-150600.14.49.1
    * glibc-utils-src-debugsource-2.38-150600.14.49.1
    * glibc-locale-base-debuginfo-2.38-150600.14.49.1
    * libnsl1-2.38-150600.14.49.1
    * glibc-debugsource-2.38-150600.14.49.1
    * glibc-devel-static-2.38-150600.14.49.1
    * glibc-utils-2.38-150600.14.49.1
    * glibc-locale-2.38-150600.14.49.1
    * glibc-debuginfo-2.38-150600.14.49.1
    * glibc-profile-2.38-150600.14.49.1
    * glibc-extra-2.38-150600.14.49.1
    * glibc-utils-debuginfo-2.38-150600.14.49.1
    * glibc-devel-2.38-150600.14.49.1
    * glibc-devel-debuginfo-2.38-150600.14.49.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
    * glibc-lang-2.38-150600.14.49.1
    * glibc-i18ndata-2.38-150600.14.49.1
    * glibc-info-2.38-150600.14.49.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)
    * glibc-devel-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-locale-base-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-locale-base-32bit-2.38-150600.14.49.1
    * glibc-devel-32bit-2.38-150600.14.49.1
    * libnsl1-32bit-2.38-150600.14.49.1
    * libnsl1-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-32bit-2.38-150600.14.49.1
  * Basesystem Module 15-SP7 (noarch)
    * glibc-lang-2.38-150600.14.49.1
    * glibc-i18ndata-2.38-150600.14.49.1
    * glibc-info-2.38-150600.14.49.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * glibc-debuginfo-2.38-150600.14.49.1
    * glibc-profile-2.38-150600.14.49.1
    * glibc-extra-debuginfo-2.38-150600.14.49.1
    * glibc-2.38-150600.14.49.1
    * glibc-locale-base-debuginfo-2.38-150600.14.49.1
    * libnsl1-2.38-150600.14.49.1
    * glibc-debugsource-2.38-150600.14.49.1
    * glibc-locale-base-2.38-150600.14.49.1
    * glibc-devel-2.38-150600.14.49.1
    * glibc-devel-debuginfo-2.38-150600.14.49.1
    * glibc-locale-2.38-150600.14.49.1
    * glibc-extra-2.38-150600.14.49.1
    * nscd-debuginfo-2.38-150600.14.49.1
    * libnsl1-debuginfo-2.38-150600.14.49.1
    * nscd-2.38-150600.14.49.1
  * Basesystem Module 15-SP7 (x86_64)
    * glibc-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-locale-base-32bit-2.38-150600.14.49.1
    * libnsl1-32bit-2.38-150600.14.49.1
    * libnsl1-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-32bit-2.38-150600.14.49.1
    * glibc-locale-base-32bit-debuginfo-2.38-150600.14.49.1
  * Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * glibc-debuginfo-2.38-150600.14.49.1
    * glibc-utils-src-debugsource-2.38-150600.14.49.1
    * glibc-utils-debuginfo-2.38-150600.14.49.1
    * glibc-debugsource-2.38-150600.14.49.1
    * glibc-devel-static-2.38-150600.14.49.1
    * glibc-utils-2.38-150600.14.49.1
  * Development Tools Module 15-SP7 (x86_64)
    * glibc-devel-32bit-2.38-150600.14.49.1
    * glibc-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-devel-32bit-debuginfo-2.38-150600.14.49.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * glibc-2.38-150600.14.49.1
    * glibc-locale-base-2.38-150600.14.49.1
    * nscd-debuginfo-2.38-150600.14.49.1
    * libnsl1-debuginfo-2.38-150600.14.49.1
    * nscd-2.38-150600.14.49.1
    * glibc-extra-debuginfo-2.38-150600.14.49.1
    * glibc-utils-src-debugsource-2.38-150600.14.49.1
    * glibc-locale-base-debuginfo-2.38-150600.14.49.1
    * glibc-debugsource-2.38-150600.14.49.1
    * libnsl1-2.38-150600.14.49.1
    * glibc-devel-static-2.38-150600.14.49.1
    * glibc-utils-2.38-150600.14.49.1
    * glibc-locale-2.38-150600.14.49.1
    * glibc-debuginfo-2.38-150600.14.49.1
    * glibc-profile-2.38-150600.14.49.1
    * glibc-extra-2.38-150600.14.49.1
    * glibc-utils-debuginfo-2.38-150600.14.49.1
    * glibc-devel-2.38-150600.14.49.1
    * glibc-devel-debuginfo-2.38-150600.14.49.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
    * glibc-lang-2.38-150600.14.49.1
    * glibc-i18ndata-2.38-150600.14.49.1
    * glibc-info-2.38-150600.14.49.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)
    * glibc-devel-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-locale-base-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-locale-base-32bit-2.38-150600.14.49.1
    * glibc-devel-32bit-2.38-150600.14.49.1
    * libnsl1-32bit-2.38-150600.14.49.1
    * libnsl1-32bit-debuginfo-2.38-150600.14.49.1
    * glibc-32bit-2.38-150600.14.49.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-4046.html
  * https://www.suse.com/security/cve/CVE-2026-5450.html
  * https://www.suse.com/security/cve/CVE-2026-5928.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261206
  * https://bugzilla.suse.com/show_bug.cgi?id=1262464
  * https://bugzilla.suse.com/show_bug.cgi?id=1262465

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