Alerts This Week
Warning Icon 1 727
Alerts This Week
Warning Icon 1 727

SUSE 2026-0371-1 glibc Important Memory Management Security Update

suse
Calendar Grey February 4, 2026
Dist Suse Esm H88
Critical security update for SUSE addressing three important issues in glibc, focusing on memory management vulnerabilities.
An update that solves three vulnerabilities and has one security fix can now be installed.

Summary

## 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

Topics%20covered

Topics Covered

security advisory security issue buffer overflow SuSE important glibc

References

* bsc#1256437

* bsc#1256766

* bsc#1256822

* bsc#1257005

Cross-

* 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0371-1
Release Date: 2026-02-03T18:09:03Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue buffer overflow SuSE important glibc

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here