SUSE-SU-2026:3029-1 | Mondoo Vulnerability Intelligence

SUSE-SU-2026:3029-1

MEDIUM5.3

Security update for glibc

Published Jul 15, 2026

Modified 1 weeks ago

Fix available

Details

Description of the patch:

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).

Affected Packages(15 packages)

glibc

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-32bit

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-devel

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-devel-32bit

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-devel-static

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-extra

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-i18ndata

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-info

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-lang

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

glibc-locale

SUSE Linux Enterprise High Performance Computing 15 SP4SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Fixed in:

2.31-150300.104.1

References

https://bugzilla.suse.com/1263656

https://bugzilla.suse.com/1263658

https://lists.suse.com/pipermail/sle-updates/2026-July/048303.html

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

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

https://www.suse.com/support/security/rating/

https://www.suse.com/support/update/announcement/2026/suse-su-20263029-1/

CVSS Analysis

CVSS v3.1

5.3

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

LowC:L

Integrity

LowI:L

Availability

LowA:L

5.3/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Upstream

CVE-2026-5435 CVE-2026-6238

Ecosystems(15)

SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS

Timeline

PublishedJul 15, 2026

ModifiedJul 15, 2026