Security update for glibc

Announcement ID:	SUSE-SU-2026:0371-1
Release Date:	2026-02-03T18:09:03Z
Rating:	important
References:	bsc#1256437 bsc#1256766 bsc#1256822 bsc#1257005
Cross-References:	CVE-2025-15281 CVE-2026-0861 CVE-2026-0915
CVSS scores:	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:	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 and has one security fix can now be installed.

Description:

This update for glibc fixes the following issues:

Security fixes:

• 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#1256437).

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-2026-371=1 openSUSE-SLE-15.6-2026-371=1
• Basesystem Module 15-SP7
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-371=1
• Development Tools Module 15-SP7
  zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-371=1
• SUSE Linux Enterprise Server 15 SP6 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-371=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-371=1

Package List:

• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586 i686)
  • glibc-2.38-150600.14.40.1
  • glibc-debuginfo-2.38-150600.14.40.1
  • glibc-devel-static-2.38-150600.14.40.1
  • glibc-locale-2.38-150600.14.40.1
  • glibc-locale-base-debuginfo-2.38-150600.14.40.1
  • glibc-profile-2.38-150600.14.40.1
  • libnsl1-debuginfo-2.38-150600.14.40.1
  • glibc-devel-debuginfo-2.38-150600.14.40.1
  • glibc-devel-2.38-150600.14.40.1
  • libnsl1-2.38-150600.14.40.1
  • glibc-locale-base-2.38-150600.14.40.1
  • glibc-debugsource-2.38-150600.14.40.1
• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
  • glibc-extra-2.38-150600.14.40.1
  • nscd-2.38-150600.14.40.1
  • glibc-utils-src-debugsource-2.38-150600.14.40.1
  • nscd-debuginfo-2.38-150600.14.40.1
  • glibc-utils-2.38-150600.14.40.1
  • glibc-extra-debuginfo-2.38-150600.14.40.1
  • glibc-utils-debuginfo-2.38-150600.14.40.1
• openSUSE Leap 15.6 (noarch)
  • glibc-info-2.38-150600.14.40.1
  • glibc-html-2.38-150600.14.40.1
  • glibc-i18ndata-2.38-150600.14.40.1
  • glibc-lang-2.38-150600.14.40.1
• openSUSE Leap 15.6 (x86_64)
  • glibc-devel-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-devel-static-32bit-2.38-150600.14.40.1
  • libnsl1-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-devel-32bit-2.38-150600.14.40.1
  • glibc-utils-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-locale-base-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-profile-32bit-2.38-150600.14.40.1
  • glibc-locale-base-32bit-2.38-150600.14.40.1
  • glibc-32bit-2.38-150600.14.40.1
  • libnsl1-32bit-2.38-150600.14.40.1
  • glibc-utils-32bit-2.38-150600.14.40.1
  • glibc-32bit-debuginfo-2.38-150600.14.40.1
• openSUSE Leap 15.6 (aarch64_ilp32)
  • glibc-64bit-debuginfo-2.38-150600.14.40.1
  • glibc-devel-64bit-2.38-150600.14.40.1
  • glibc-devel-64bit-debuginfo-2.38-150600.14.40.1
  • glibc-64bit-2.38-150600.14.40.1
  • libnsl1-64bit-debuginfo-2.38-150600.14.40.1
  • glibc-devel-static-64bit-2.38-150600.14.40.1
  • glibc-locale-base-64bit-2.38-150600.14.40.1
  • glibc-profile-64bit-2.38-150600.14.40.1
  • glibc-utils-64bit-debuginfo-2.38-150600.14.40.1
  • glibc-locale-base-64bit-debuginfo-2.38-150600.14.40.1
  • glibc-utils-64bit-2.38-150600.14.40.1
  • libnsl1-64bit-2.38-150600.14.40.1
• Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
  • glibc-2.38-150600.14.40.1
  • glibc-debuginfo-2.38-150600.14.40.1
  • glibc-locale-2.38-150600.14.40.1
  • glibc-locale-base-debuginfo-2.38-150600.14.40.1
  • glibc-profile-2.38-150600.14.40.1
  • libnsl1-debuginfo-2.38-150600.14.40.1
  • glibc-extra-2.38-150600.14.40.1
  • glibc-devel-debuginfo-2.38-150600.14.40.1
  • nscd-2.38-150600.14.40.1
  • glibc-devel-2.38-150600.14.40.1
  • nscd-debuginfo-2.38-150600.14.40.1
  • libnsl1-2.38-150600.14.40.1
  • glibc-locale-base-2.38-150600.14.40.1
  • glibc-debugsource-2.38-150600.14.40.1
  • glibc-extra-debuginfo-2.38-150600.14.40.1
• Basesystem Module 15-SP7 (noarch)
  • glibc-info-2.38-150600.14.40.1
  • glibc-i18ndata-2.38-150600.14.40.1
  • glibc-lang-2.38-150600.14.40.1
• Basesystem Module 15-SP7 (x86_64)
  • libnsl1-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-locale-base-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-locale-base-32bit-2.38-150600.14.40.1
  • glibc-32bit-2.38-150600.14.40.1
  • libnsl1-32bit-2.38-150600.14.40.1
  • glibc-32bit-debuginfo-2.38-150600.14.40.1
• Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
  • glibc-debuginfo-2.38-150600.14.40.1
  • glibc-devel-static-2.38-150600.14.40.1
  • glibc-utils-src-debugsource-2.38-150600.14.40.1
  • glibc-debugsource-2.38-150600.14.40.1
  • glibc-utils-2.38-150600.14.40.1
  • glibc-utils-debuginfo-2.38-150600.14.40.1
• Development Tools Module 15-SP7 (x86_64)
  • glibc-devel-32bit-2.38-150600.14.40.1
  • glibc-devel-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-32bit-debuginfo-2.38-150600.14.40.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
  • glibc-2.38-150600.14.40.1
  • glibc-debuginfo-2.38-150600.14.40.1
  • glibc-devel-static-2.38-150600.14.40.1
  • glibc-locale-2.38-150600.14.40.1
  • glibc-locale-base-debuginfo-2.38-150600.14.40.1
  • glibc-profile-2.38-150600.14.40.1
  • libnsl1-debuginfo-2.38-150600.14.40.1
  • glibc-extra-2.38-150600.14.40.1
  • glibc-devel-debuginfo-2.38-150600.14.40.1
  • glibc-utils-src-debugsource-2.38-150600.14.40.1
  • nscd-2.38-150600.14.40.1
  • glibc-devel-2.38-150600.14.40.1
  • nscd-debuginfo-2.38-150600.14.40.1
  • libnsl1-2.38-150600.14.40.1
  • glibc-locale-base-2.38-150600.14.40.1
  • glibc-debugsource-2.38-150600.14.40.1
  • glibc-utils-2.38-150600.14.40.1
  • glibc-extra-debuginfo-2.38-150600.14.40.1
  • glibc-utils-debuginfo-2.38-150600.14.40.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
  • glibc-info-2.38-150600.14.40.1
  • glibc-i18ndata-2.38-150600.14.40.1
  • glibc-lang-2.38-150600.14.40.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)
  • glibc-devel-32bit-debuginfo-2.38-150600.14.40.1
  • libnsl1-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-devel-32bit-2.38-150600.14.40.1
  • glibc-locale-base-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-locale-base-32bit-2.38-150600.14.40.1
  • glibc-32bit-2.38-150600.14.40.1
  • libnsl1-32bit-2.38-150600.14.40.1
  • glibc-32bit-debuginfo-2.38-150600.14.40.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
  • glibc-2.38-150600.14.40.1
  • glibc-debuginfo-2.38-150600.14.40.1
  • glibc-devel-static-2.38-150600.14.40.1
  • glibc-locale-2.38-150600.14.40.1
  • glibc-locale-base-debuginfo-2.38-150600.14.40.1
  • glibc-profile-2.38-150600.14.40.1
  • libnsl1-debuginfo-2.38-150600.14.40.1
  • glibc-extra-2.38-150600.14.40.1
  • glibc-devel-debuginfo-2.38-150600.14.40.1
  • glibc-utils-src-debugsource-2.38-150600.14.40.1
  • nscd-2.38-150600.14.40.1
  • glibc-devel-2.38-150600.14.40.1
  • nscd-debuginfo-2.38-150600.14.40.1
  • libnsl1-2.38-150600.14.40.1
  • glibc-locale-base-2.38-150600.14.40.1
  • glibc-debugsource-2.38-150600.14.40.1
  • glibc-utils-2.38-150600.14.40.1
  • glibc-extra-debuginfo-2.38-150600.14.40.1
  • glibc-utils-debuginfo-2.38-150600.14.40.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
  • glibc-info-2.38-150600.14.40.1
  • glibc-i18ndata-2.38-150600.14.40.1
  • glibc-lang-2.38-150600.14.40.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)
  • glibc-devel-32bit-debuginfo-2.38-150600.14.40.1
  • libnsl1-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-devel-32bit-2.38-150600.14.40.1
  • glibc-locale-base-32bit-debuginfo-2.38-150600.14.40.1
  • glibc-locale-base-32bit-2.38-150600.14.40.1
  • glibc-32bit-2.38-150600.14.40.1
  • libnsl1-32bit-2.38-150600.14.40.1
  • glibc-32bit-debuginfo-2.38-150600.14.40.1

References:

• https://www.suse.com/security/cve/CVE-2025-15281.html
• https://www.suse.com/security/cve/CVE-2026-0861.html
• https://www.suse.com/security/cve/CVE-2026-0915.html
• https://bugzilla.suse.com/show_bug.cgi?id=1256437
• https://bugzilla.suse.com/show_bug.cgi?id=1256766
• https://bugzilla.suse.com/show_bug.cgi?id=1256822
• https://bugzilla.suse.com/show_bug.cgi?id=1257005