SUSE-SU-2026:23145-1: important: Security update for rsyslog

[SLE-SECURITY-UPDATES]

# Security update for rsyslog

Announcement ID: SUSE-SU-2026:23145-1  
Release Date: 2026-08-05T09:10:00Z  
Rating: important  
References:

  * bsc#1264721
  * bsc#1271910
  * bsc#1272414

  
Cross-References:

  * CVE-2026-61548

  
CVSS scores:

  * CVE-2026-61548 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves one vulnerability and has two fixes can now be installed.

## Description:

This update for rsyslog fixes the following issues:

  * CVE-2026-61548: crafted RFC 5424 messages to mmpstrucdata can lead to a
    stack overwrite (bsc#1272414).
  * input sequence during oversize-frame recovery in imptcp can cause denial of
    service (bsc#1271910).

Changes for rsyslog:

  * added a devel subpackage, with requires (bsc#1264721)

## 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 for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-1434=1

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * rsyslog-module-gtls-debuginfo-8.2502.0-160000.4.1
    * rsyslog-module-gtls-8.2502.0-160000.4.1
    * rsyslog-module-relp-8.2502.0-160000.4.1
    * rsyslog-module-mmnormalize-8.2502.0-160000.4.1
    * rsyslog-debugsource-8.2502.0-160000.4.1
    * rsyslog-module-gssapi-debuginfo-8.2502.0-160000.4.1
    * rsyslog-module-mmnormalize-debuginfo-8.2502.0-160000.4.1
    * rsyslog-module-gssapi-8.2502.0-160000.4.1
    * rsyslog-module-relp-debuginfo-8.2502.0-160000.4.1
    * rsyslog-8.2502.0-160000.4.1
    * rsyslog-module-ossl-debuginfo-8.2502.0-160000.4.1
    * rsyslog-debuginfo-8.2502.0-160000.4.1
    * rsyslog-module-ossl-8.2502.0-160000.4.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-61548.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1264721
  * https://bugzilla.suse.com/show_bug.cgi?id=1271910
  * https://bugzilla.suse.com/show_bug.cgi?id=1272414

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