Security update for gnutls

Announcement ID: SUSE-SU-2025:20665-1
Release Date: 2025-08-29T09:13:16Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-32988 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-32988 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-32988 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
  • CVE-2025-32988 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
  • CVE-2025-32989 ( SUSE ): 8.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-32989 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
  • CVE-2025-32989 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • CVE-2025-32990 ( SUSE ): 4.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
  • CVE-2025-32990 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
  • CVE-2025-32990 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  • CVE-2025-32990 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
  • CVE-2025-6395 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-6395 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-6395 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Affected Products:
  • SUSE Linux Micro 6.1

An update that solves four vulnerabilities can now be installed.

Description:

This update for gnutls fixes the following issues:

  • CVE-2025-32988: Fixed double-free due to incorrect ownership handling in the export logic of SAN entries containing an otherName (bsc#1246232).
  • CVE-2025-32989: Fixed heap buffer overread when handling the CT SCT extension during X.509 certificate parsing (bsc#1246233).
  • CVE-2025-32990: Fixed 1-byte heap buffer overflow when parsing templates with certtool (bsc#1246267).
  • CVE-2025-6395: Fixed NULL pointer dereference when 2nd Client Hello omits PSK (bsc#1246299).

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 6.1
    zypper in -t patch SUSE-SLE-Micro-6.1-243=1

Package List:

  • SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
    • gnutls-debuginfo-3.8.3-slfo.1.1_4.1
    • libgnutls30-debuginfo-3.8.3-slfo.1.1_4.1
    • gnutls-3.8.3-slfo.1.1_4.1
    • gnutls-debugsource-3.8.3-slfo.1.1_4.1
    • libgnutls30-3.8.3-slfo.1.1_4.1

References: