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SUSE krb5 Important Heap Overflow Risk Advisory 2026-2849-1

suse
Calendar Grey July 10, 2026
Dist Suse Esm H88
A key SUSE security advisory update for krb5 addresses integer underflow issues and improves system safety.
An update that solves one vulnerability can now be installed.

Summary

## 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). ## 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 12 SP5 LTSS zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2849=1 * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2849=1 ## Package List: * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64) * krb5-debugsource-1.16.3-46.24.1 * krb5-server-debuginfo-1.16.3-46.24.1 * krb5-doc-1.16.3-46.24.1

Topics%20covered

Topics Covered

security advisory SuSE important heap overflow krb5 CVE-2026-11850

References

* bsc#1268131

Cross-

* CVE-2026-11850

CVSS scores:

* CVE-2026-11850 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H

* CVE-2026-11850 ( NVD ): 5.0 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H

Affected Products:

* SUSE Linux Enterprise High Performance Computing 12 SP5

* SUSE Linux Enterprise Server 12 SP5

* SUSE Linux Enterprise Server 12 SP5 LTSS

* SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security

* SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves one vulnerability can now be installed.

##

* 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-2026:2849-1
Release Date: 2026-07-10T11:39:24Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important heap overflow krb5 CVE-2026-11850

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