Security update for gnutls

Announcement ID: SUSE-SU-2026:2367-1
Release Date: 2026-06-11T09:12:53Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-9820 ( SUSE ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE-2025-9820 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE-2026-33845 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-33845 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  • CVE-2026-33845 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  • CVE-2026-33845 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-33846 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-33846 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-33846 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-42009 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-42009 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-42009 ( 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 High Performance Computing 12 SP5
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server 12 SP5 LTSS
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves four vulnerabilities can now be installed.

Description:

This update for gnutls fixes the following issues

  • CVE-2026-33845: buffers: switch from end_offset over to frag_length (bsc#1263704).
  • CVE-2026-33846: buffers: add more checks to DTLS reassembly (bsc#1263705).
  • CVE-2026-42009: lib/buffers: ensure packets have differing sequence numbers (bsc#1263708).

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 12 SP5 LTSS
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2367=1
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2367=1

Package List:

  • SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    • libgnutlsxx-devel-3.3.27-3.18.1
    • libgnutls-openssl-devel-3.3.27-3.18.1
    • libgnutls28-debuginfo-3.3.27-3.18.1
    • libgnutls-openssl27-3.3.27-3.18.1
    • gnutls-debugsource-3.3.27-3.18.1
    • gnutls-3.3.27-3.18.1
    • libgnutls28-3.3.27-3.18.1
    • libgnutls-openssl27-debuginfo-3.3.27-3.18.1
    • gnutls-debuginfo-3.3.27-3.18.1
    • libgnutls-devel-3.3.27-3.18.1
  • SUSE Linux Enterprise Server 12 SP5 LTSS (s390x x86_64)
    • libgnutls28-debuginfo-32bit-3.3.27-3.18.1
    • libgnutls28-32bit-3.3.27-3.18.1
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    • libgnutlsxx-devel-3.3.27-3.18.1
    • libgnutls-openssl-devel-3.3.27-3.18.1
    • libgnutls28-debuginfo-32bit-3.3.27-3.18.1
    • libgnutls28-debuginfo-3.3.27-3.18.1
    • libgnutls-openssl27-3.3.27-3.18.1
    • gnutls-debugsource-3.3.27-3.18.1
    • gnutls-3.3.27-3.18.1
    • libgnutls28-3.3.27-3.18.1
    • libgnutls-openssl27-debuginfo-3.3.27-3.18.1
    • libgnutls28-32bit-3.3.27-3.18.1
    • gnutls-debuginfo-3.3.27-3.18.1
    • libgnutls-devel-3.3.27-3.18.1

References: