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openSUSE krb5 Important Heap Overflow Fix Vuln 2026-2954-1

opensuse
Calendar Grey July 14, 2026
Dist Opensuse Esm H88
An important update for openSUSE addressing heap overflow issues in krb5 is now available, resolving CVE-2026-11850.
An update that solves one vulnerability can now be installed.

Description

This update for krb5 fixes the following issue

* CVE-2026-11850: integer underflow in berval2tl_data() leads to heap out-of-

bounds read (bsc#1268131).

Topics%20covered

Topics Covered

security advisory important heap overflow krb5 integer underflow 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:

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2954=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2954=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-2954=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-2954=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2954=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2954=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-2954=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch...

Read the Full Advisory

Package List

* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)

* krb5-client-debuginfo-1.19.2-150400.3.24.1

* krb5-plugin-preauth-pkinit-debuginfo-1.19.2-150400.3.24.1

* krb5-plugin-kdb-ldap-debuginfo-1.19.2-150400.3.24.1

* krb5-plugin-preauth-pkinit-1.19.2-150400.3.24.1

* krb5-server-1.19.2-150400.3.24.1

* krb5-debugsource-1.19.2-150400.3.24.1

* krb5-1.19.2-150400.3.24.1

* krb5-client-1.19.2-150400.3.24.1

* krb5-debuginfo-1.19.2-150400.3.24.1

* krb5-devel-1.19.2-150400.3.24.1

* krb5-server-debuginfo-1.19.2-150400.3.24.1

* krb5-plugin-preauth-otp-debuginfo-1.19.2-150400.3.24.1

* krb5-plugin-preauth-otp-1.19.2-150400.3.24.1

* krb5-plugin-kdb-ldap-1.19.2-150400.3.24.1

* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (x86_64)

* krb5-32bit-debuginfo-1.19.2-150400.3.24.1

* krb5-32bit-1.19.2-150400.3.24.1

* openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64)

* krb5-debugsource-1.19.2-150400.3.24.1

* krb5-mini-debugsource-1.19.2-150400.3.24.1

*...

Read the Full Advisory

References

* bsc#1268131

## References:

* https://www.suse.com/security/cve/CVE-2026-11850.html

* https://bugzilla.suse.com/show_bug.cgi?id=1268131

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2954-1
Release Date: 2026-07-14T09:57:42Z
Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * 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 for SAP Applications 15 SP4

Topics%20covered

Topics Covered

security advisory important heap overflow krb5 integer underflow OpenSUSE

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