Security update for python-cbor2

Announcement ID: SUSE-SU-2025:21168-1
Release Date: 2025-12-02T13:51:41Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2024-26134 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2024-26134 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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
  • 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 ( 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 two vulnerabilities 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 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-16.0-91=1
  • SUSE Linux Enterprise Server for SAP Applications 16.0
    zypper in -t patch SUSE-SLES-16.0-91=1

Package List:

  • SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    • python-cbor2-debugsource-5.6.5-160000.3.1
    • python313-cbor2-debuginfo-5.6.5-160000.3.1
    • python313-cbor2-5.6.5-160000.3.1
  • SUSE Linux Enterprise Server for SAP Applications 16.0 (ppc64le x86_64)
    • python-cbor2-debugsource-5.6.5-160000.3.1
    • python313-cbor2-debuginfo-5.6.5-160000.3.1
    • python313-cbor2-5.6.5-160000.3.1

References: