Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 568
Alerts This Week
Warning Icon 1 568

openSUSE glibc Moderate Buffer Overflow Out-of-Bounds Fix 2026-3029-1

opensuse
Calendar Grey July 15, 2026
Dist Opensuse Esm H88
This update for glibc addresses moderate vulnerabilities including buffer issues and application crashes.
An update that solves two vulnerabilities can now be installed.

Description

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).

Topics%20covered

Topics Covered

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

Patch

## 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 15.3

zypper in -t patch SUSE-2026-3029=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-3029=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-3029=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-3029=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-3029=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-3029=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-3029=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch...

Read the Full Advisory

Package List

* openSUSE Leap 15.3 (aarch64 i586 ppc64le s390x x86_64)

* glibc-utils-src-debugsource-2.31-150300.104.1

* glibc-utils-debuginfo-2.31-150300.104.1

* nscd-2.31-150300.104.1

* glibc-utils-2.31-150300.104.1

* glibc-extra-debuginfo-2.31-150300.104.1

* nscd-debuginfo-2.31-150300.104.1

* glibc-extra-2.31-150300.104.1

* openSUSE Leap 15.3 (aarch64 i586 i686 ppc64le s390x x86_64)

* glibc-locale-2.31-150300.104.1

* glibc-profile-2.31-150300.104.1

* glibc-devel-2.31-150300.104.1

* glibc-locale-base-2.31-150300.104.1

* glibc-locale-base-debuginfo-2.31-150300.104.1

* glibc-devel-debuginfo-2.31-150300.104.1

* glibc-2.31-150300.104.1

* glibc-devel-static-2.31-150300.104.1

* glibc-debugsource-2.31-150300.104.1

* glibc-debuginfo-2.31-150300.104.1

* openSUSE Leap 15.3 (x86_64)

* glibc-profile-32bit-2.31-150300.104.1

* glibc-utils-32bit-debuginfo-2.31-150300.104.1

* glibc-devel-32bit-2.31-150300.104.1

* glibc-locale-base-32bit-debuginfo-2.31-150300.104.1

* glibc-devel-32bit-debuginfo-2.31-150300.104.1

*...

Read the Full Advisory

References

* bsc#1263656

* bsc#1263658

## References:

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

* https://www.suse.com/security/cve/CVE-2026-6238.html

* https://bugzilla.suse.com/show_bug.cgi?id=1263656

* https://bugzilla.suse.com/show_bug.cgi?id=1263658

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3029-1
Release Date: 2026-07-15T09:52:53Z
Affected Products: * openSUSE Leap 15.3 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Micro for Rancher 5.3 * SUSE Linux Enterprise Micro for Rancher 5.4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5

Topics%20covered

Topics Covered

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

Get the latest News and Insights

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