SUSE-SU-2026:20133-1: important: Security update for python-pyasn1

[SLE-UPDATES]

# Security update for python-pyasn1

Announcement ID: SUSE-SU-2026:20133-1  
Release Date: 2026-01-22T16:35:43Z  
Rating: important  
References:

  * bsc#1256902

  
Cross-References:

  * CVE-2026-23490

  
CVSS scores:

  * CVE-2026-23490 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-23490 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP Applications 16.0

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for python-pyasn1 fixes the following issues:

  * CVE-2026-23490: Fixed Denial-of-Service issue that may lead to memory
    exhaustion from malformed RELATIVE-OID with excessive continuation octets
    (bsc#1256902)

## 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 16.0  
    zypper in -t patch SUSE-SLES-16.0-178=1

  * SUSE Linux Enterprise Server for SAP Applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-178=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (noarch)
    * python313-pyasn1-0.6.1-160000.3.1
  * SUSE Linux Enterprise Server for SAP Applications 16.0 (noarch)
    * python313-pyasn1-0.6.1-160000.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-23490.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1256902

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.suse.com/pipermail/sle-updates/attachments/20260128/4d93ff37/attachment-0001.htm>