Security update for libtasn1

Announcement ID: SUSE-SU-2026:21001-1
Release Date: 2026-04-07T14:45:56Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2025-13151 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-13151 ( SUSE ): 6.6 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
  • CVE-2025-13151 ( 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 Micro 6.2

An update that solves one vulnerability can now be installed.

Description:

This update for libtasn1 fixes the following issues:

  • CVE-2025-13151: lack of validation of input data size leads to stack-based buffer overflow in asn1_expend_octet_string (bsc#1256341).

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 Micro 6.2
    zypper in -t patch SUSE-SL-Micro-6.2-484=1

Package List:

  • SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    • libtasn1-debugsource-4.21.0-160000.1.1
    • libtasn1-6-debuginfo-4.21.0-160000.1.1
    • libtasn1-6-4.21.0-160000.1.1

References: