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SUSE glibc Moderate App Crash Memory Issue SUSE-SU-2026-3030-1

suse
Calendar Grey July 15, 2026
Scroller Suse
Two vulnerabilities in glibc can be mitigated with this moderate security update from SUSE. Immediate action recommended.
SUSE has released a security update for glibc addressing two vulnerabilities that could cause application crashes or memory disclosure, affecting multiple SUSE products.

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: * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-3030=1 * SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3030=1 * openSUSE Leap 15.6 zypper in -t patch SUSE-2026-3030=1 * Development Tools Module 15-SP7

Topics%20covered

Topics Covered

security advisory moderate SuSE glibc application crash memory disclosure

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:

* 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

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3030-1
Release Date: 2026-07-15T09:53:19Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE glibc application crash memory disclosure

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