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SUSE alert SUSE-SU-2026:2954-1 (krb5)



From:
              OPENSUSE-SECURITY-UPDATES <null@suse.de>


To:
              security-announce@lists.opensuse.org


Subject:
              SUSE-SU-2026:2954-1: important: Security update for krb5


Date:
              Tue, 14 Jul 2026 16:40:29 -0000


Message-ID:
              <178404722947.143.11172910625747341442@178315a69387>


Archive-link:
              Article


# Security update for krb5

Announcement ID: SUSE-SU-2026:2954-1  
Release Date: 2026-07-14T09:57:42Z  
Rating: important  
References:

  * bsc#1268131

  
Cross-References:

  * 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:

  * 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

  
  
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).

## 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 SUSE-SLE-Micro-5.4-2026-2954=1

  * openSUSE Leap 15.4  
    zypper in -t patch SUSE-2026-2954=1

## 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
    * krb5-plugin-preauth-spake-1.19.2-150400.3.24.1
    * krb5-plugin-preauth-otp-1.19.2-150400.3.24.1
    * krb5-mini-debuginfo-1.19.2-150400.3.24.1
    * krb5-debuginfo-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-pkinit-debuginfo-1.19.2-150400.3.24.1
    * krb5-server-1.19.2-150400.3.24.1
    * krb5-mini-1.19.2-150400.3.24.1
    * krb5-plugin-preauth-pkinit-1.19.2-150400.3.24.1
    * krb5-devel-1.19.2-150400.3.24.1
    * krb5-client-debuginfo-1.19.2-150400.3.24.1
    * krb5-plugin-kdb-ldap-debuginfo-1.19.2-150400.3.24.1
    * krb5-1.19.2-150400.3.24.1
    * krb5-mini-devel-1.19.2-150400.3.24.1
    * krb5-client-1.19.2-150400.3.24.1
    * krb5-plugin-preauth-spake-debuginfo-1.19.2-150400.3.24.1
    * krb5-plugin-kdb-ldap-1.19.2-150400.3.24.1
  * openSUSE Leap 15.4 (aarch64_ilp32)
    * krb5-64bit-debuginfo-1.19.2-150400.3.24.1
    * krb5-devel-64bit-1.19.2-150400.3.24.1
    * krb5-64bit-1.19.2-150400.3.24.1
  * openSUSE Leap 15.4 (x86_64)
    * krb5-32bit-debuginfo-1.19.2-150400.3.24.1
    * krb5-devel-32bit-1.19.2-150400.3.24.1
    * krb5-32bit-1.19.2-150400.3.24.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x 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-server-1.19.2-150400.3.24.1
    * krb5-debugsource-1.19.2-150400.3.24.1
    * krb5-plugin-preauth-pkinit-1.19.2-150400.3.24.1
    * krb5-1.19.2-150400.3.24.1
    * krb5-debuginfo-1.19.2-150400.3.24.1
    * krb5-client-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 15 SP4 LTSS (x86_64)
    * krb5-32bit-debuginfo-1.19.2-150400.3.24.1
    * krb5-32bit-1.19.2-150400.3.24.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    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-server-1.19.2-150400.3.24.1
    * krb5-plugin-preauth-pkinit-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-devel-1.19.2-150400.3.24.1
    * krb5-debuginfo-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 High Performance Computing ESPOS 15 SP4 (x86_64)
    * krb5-32bit-debuginfo-1.19.2-150400.3.24.1
    * krb5-32bit-1.19.2-150400.3.24.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    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-debugsource-1.19.2-150400.3.24.1
    * krb5-server-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 High Performance Computing LTSS 15 SP4 (x86_64)
    * krb5-32bit-debuginfo-1.19.2-150400.3.24.1
    * krb5-32bit-1.19.2-150400.3.24.1
  * SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
    * krb5-debugsource-1.19.2-150400.3.24.1
    * krb5-1.19.2-150400.3.24.1
    * krb5-debuginfo-1.19.2-150400.3.24.1
  * SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
    * krb5-debugsource-1.19.2-150400.3.24.1
    * krb5-1.19.2-150400.3.24.1
    * krb5-debuginfo-1.19.2-150400.3.24.1
  * SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
    * krb5-debugsource-1.19.2-150400.3.24.1
    * krb5-1.19.2-150400.3.24.1
    * krb5-debuginfo-1.19.2-150400.3.24.1
  * SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
    * krb5-debugsource-1.19.2-150400.3.24.1
    * krb5-1.19.2-150400.3.24.1
    * krb5-debuginfo-1.19.2-150400.3.24.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-11850.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1268131





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