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SUSE glibc Moderate Out-of-Bounds and Crash Issues Vuln 2026-22538-1

suse
Calendar Grey July 13, 2026
Dist Suse Esm H88
SUSE releases security update for glibc addressing multiple vulnerabilities including application crashes and buffer overflows.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for glibc fixes the following issues * CVE-2026-5435: unchecked buffer writing in TSIG handling can lead to an out- of-bounds write (bsc#1263656). * CVE-2026-6238: insufficient RDATA length validation can lead to application crashes or uninitialized memory disclosure (bsc#1263658). ## 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 Micro Extras 6.2 zypper in -t patch SUSE-SLE-Micro-Extras-6.2-1157=1 ## Package List: * SUSE Linux Micro Extras 6.2 (aarch64 ppc64le s390x x86_64) * glibc-gconv-modules-extra-2.40-160000.6.1 * glibc-debuginfo-2.40-160000.6.1 * glibc-gconv-modules-extra-debuginfo-2.40-160000.6.1

Topics%20covered

Topics Covered

security advisory moderate SuSE glibc application crash out-of-bounds

References

* bsc#1263656

* bsc#1263658

Cross-

* CVE-2026-5435

* CVE-2026-6238

CVSS scores:

* CVE-2026-5435 ( SUSE ): 4.8

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

* CVE-2026-5435 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

* CVE-2026-5435 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

* CVE-2026-6238 ( SUSE ): 4.8

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

* CVE-2026-6238 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

* CVE-2026-6238 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected Products:

* SUSE Linux Micro 6.2

* SUSE Linux Micro Extras 6.2

An update that solves two vulnerabilities can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-5435.html

Severity
moderate
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2026:22538-1
Release Date: 2026-07-03T13:25:46Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE glibc application crash out-of-bounds

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