openSUSE-SU-2026:21535-1: important: Security update for rsyslog

openSUSE security update: security update for rsyslog
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Announcement ID: openSUSE-SU-2026:21535-1
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:

         openSUSE Leap 16.0

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An update that solves one vulnerability and has 3 bug 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 openSUSE security update use the suse recommended installation methods
   like YaST online_update or "zypper patch".
   Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-1434=1

Package List:

- openSUSE Leap 16.0:

  rsyslog-8.2502.0-160000.4.1
  rsyslog-devel-8.2502.0-160000.4.1
  rsyslog-diag-tools-8.2502.0-160000.4.1
  rsyslog-doc-8.2502.0-160000.4.1
  rsyslog-module-elasticsearch-8.2502.0-160000.4.1
  rsyslog-module-gcrypt-8.2502.0-160000.4.1
  rsyslog-module-gssapi-8.2502.0-160000.4.1
  rsyslog-module-gtls-8.2502.0-160000.4.1
  rsyslog-module-mmnormalize-8.2502.0-160000.4.1
  rsyslog-module-mysql-8.2502.0-160000.4.1
  rsyslog-module-omhttpfs-8.2502.0-160000.4.1
  rsyslog-module-omtcl-8.2502.0-160000.4.1
  rsyslog-module-ossl-8.2502.0-160000.4.1
  rsyslog-module-pgsql-8.2502.0-160000.4.1
  rsyslog-module-relp-8.2502.0-160000.4.1

References:

  * https://www.suse.com/security/cve/CVE-2026-61548.html