Security update for glibc SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2026:20527-1 Final 1 1 2026-02-26T11:33:53Z current 2026-02-26T11:33:53Z 2026-02-26T11:33:53Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for glibc This update for glibc fixes the following issues: - CVE-2026-0861: inadequate size check in the memalign suite may result in an integer overflow (bsc#1256766). - CVE-2026-0915: uninitialized stack buffer used as DNS query name when net==0 in _nss_dns_getnetbyaddr_r (bsc#1256822). - CVE-2025-15281: uninitialized memory may cause the process abort (bsc#1257005). - CVE-2025-8058: a malloc failure in regcomp function can lead to a double free (bsc#1246965). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Micro-6.0-597 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2026/suse-su-202620527-1/ Link for SUSE-SU-2026:20527-1 https://lists.suse.com/pipermail/sle-security-updates/2026-February/024495.html E-Mail link for SUSE-SU-2026:20527-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1246965 SUSE Bug 1246965 https://bugzilla.suse.com/1256766 SUSE Bug 1256766 https://bugzilla.suse.com/1256822 SUSE Bug 1256822 https://bugzilla.suse.com/1257005 SUSE Bug 1257005 https://www.suse.com/security/cve/CVE-2025-15281/ SUSE CVE CVE-2025-15281 page https://www.suse.com/security/cve/CVE-2025-8058/ SUSE CVE CVE-2025-8058 page https://www.suse.com/security/cve/CVE-2026-0861/ SUSE CVE CVE-2026-0861 page https://www.suse.com/security/cve/CVE-2026-0915/ SUSE CVE CVE-2026-0915 page SUSE Linux Micro 6.0 glibc-2.38-11.1 glibc-devel-2.38-11.1 glibc-locale-2.38-11.1 glibc-locale-base-2.38-11.1 glibc-2.38-11.1 as a component of SUSE Linux Micro 6.0 glibc-devel-2.38-11.1 as a component of SUSE Linux Micro 6.0 glibc-locale-2.38-11.1 as a component of SUSE Linux Micro 6.0 glibc-locale-base-2.38-11.1 as a component of SUSE Linux Micro 6.0 Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process. CVE-2025-15281 SUSE Linux Micro 6.0:glibc-2.38-11.1 SUSE Linux Micro 6.0:glibc-devel-2.38-11.1 SUSE Linux Micro 6.0:glibc-locale-2.38-11.1 SUSE Linux Micro 6.0:glibc-locale-base-2.38-11.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620527-1/ https://www.suse.com/security/cve/CVE-2025-15281.html CVE-2025-15281 https://bugzilla.suse.com/1257005 SUSE Bug 1257005 The regcomp function in the GNU C library version from 2.4 to 2.41 is subject to a double free if some previous allocation fails. It can be accomplished either by a malloc failure or by using an interposed malloc that injects random malloc failures. The double free can allow buffer manipulation depending of how the regex is constructed. This issue affects all architectures and ABIs supported by the GNU C library. CVE-2025-8058 SUSE Linux Micro 6.0:glibc-2.38-11.1 SUSE Linux Micro 6.0:glibc-devel-2.38-11.1 SUSE Linux Micro 6.0:glibc-locale-2.38-11.1 SUSE Linux Micro 6.0:glibc-locale-base-2.38-11.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620527-1/ https://www.suse.com/security/cve/CVE-2025-8058.html CVE-2025-8058 https://bugzilla.suse.com/1246965 SUSE Bug 1246965 Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption. Note that the attacker must have control over both, the size as well as the alignment arguments of the memalign function to be able to exploit this. The size parameter must be close enough to PTRDIFF_MAX so as to overflow size_t along with the large alignment argument. This limits the malicious inputs for the alignment for memalign to the range [1<<62+ 1, 1<<63] and exactly 1<<63 for posix_memalign and aligned_alloc. Typically the alignment argument passed to such functions is a known constrained quantity (e.g. page size, block size, struct sizes) and is not attacker controlled, because of which this may not be easily exploitable in practice. An application bug could potentially result in the input alignment being too large, e.g. due to a different buffer overflow or integer overflow in the application or its dependent libraries, but that is again an uncommon usage pattern given typical sources of alignments. CVE-2026-0861 SUSE Linux Micro 6.0:glibc-2.38-11.1 SUSE Linux Micro 6.0:glibc-devel-2.38-11.1 SUSE Linux Micro 6.0:glibc-locale-2.38-11.1 SUSE Linux Micro 6.0:glibc-locale-base-2.38-11.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620527-1/ https://www.suse.com/security/cve/CVE-2026-0861.html CVE-2026-0861 https://bugzilla.suse.com/1256766 SUSE Bug 1256766 https://bugzilla.suse.com/1256913 SUSE Bug 1256913 Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver. CVE-2026-0915 SUSE Linux Micro 6.0:glibc-2.38-11.1 SUSE Linux Micro 6.0:glibc-devel-2.38-11.1 SUSE Linux Micro 6.0:glibc-locale-2.38-11.1 SUSE Linux Micro 6.0:glibc-locale-base-2.38-11.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-202620527-1/ https://www.suse.com/security/cve/CVE-2026-0915.html CVE-2026-0915 https://bugzilla.suse.com/1256822 SUSE Bug 1256822