SUSE alert openSUSE-SU-2025-20133-1 (python-cbor2)

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meissner@suse.com
To:
             
 
security-announce@lists.opensuse.org
Subject:
             
 
openSUSE-SU-2025-20133-1: important: Security update for python-cbor2
Date:
             
 
Wed, 03 Dec 2025 09:36:01 +0100
Message-ID:
             
 
<20251203083601.94206FBA1@maintenance.suse.de>
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Article
openSUSE security update: security update for python-cbor2
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2025-20133-1
Rating: important
References:

  * bsc#1220096
  * bsc#1253746



Cross-References:

  * CVE-2024-26134
  * CVE-2025-64076



CVSS scores:

  * CVE-2025-64076 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:H
  * CVE-2025-64076 ( SUSE ): 5.2 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:H/SC:L/SI:N/SA:N

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 2 vulnerabilities and has 2 bug fixes can now be installed.

Description:

This update for python-cbor2 fixes the following issues:

- CVE-2025-64076: Fixed bug in decode_definite_long_string() that causes incorrect chunk length
calculation (bsc#1253746).


Already fixed in release 5.6.3:

- CVE-2024-26134: Fixed potential crash when hashing a CBORTag (bsc#1220096).


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-16.0-91=1

Package List:

- openSUSE Leap 16.0:

  python313-cbor2-5.6.5-160000.3.1

References:

  * https://www.suse.com/security/cve/CVE-2024-26134.html
  * https://www.suse.com/security/cve/CVE-2025-64076.html