Security update for openssl-3

Announcement ID: SUSE-SU-2026:21107-1
Release Date: 2026-04-13T16:22:41Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-2673 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  • CVE-2026-2673 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • CVE-2026-2673 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVE-2026-28387 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  • CVE-2026-28388 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-28389 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE-2026-28389 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-28390 ( 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-2026-28390 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-28390 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-31789 ( SUSE ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2026-31790 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
  • CVE-2026-31790 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:
  • SUSE Linux Micro 6.2

An update that solves seven vulnerabilities and contains one feature can now be installed.

Description:

This update for openssl-3 fixes the following issues:

Security issues fixed:

  • CVE-2026-2673: TLS 1.3 servers may choose unexpected key agreement group (bsc#1259652).
  • CVE-2026-28387: potential use-after-free in DANE client code (bsc#1260441).
  • CVE-2026-28388: NULL pointer dereference when processing a delta (bsc#1260442).
  • CVE-2026-28389: possible NULL pointer dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
  • CVE-2026-28390: NULL pointer dereference during processing of a crafted CMS EnvelopedData message with KeyTransportRecipientInfo (bsc#1261678).
  • CVE-2026-31789: heap buffer overflow in hexadecimal conversion (bsc#1260444).
  • CVE-2026-31790: incorrect failure handling in RSA KEM RSASVE encapsulation (bsc#1260445).

Other updates and bugfixes:

  • Enable MD2 in legacy provider (jsc#PED-15724).

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-6.2-547=1

Package List:

  • SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    • libopenssl3-3.5.0-160000.7.1
    • libopenssl-3-fips-provider-debuginfo-3.5.0-160000.7.1
    • openssl-3-debugsource-3.5.0-160000.7.1
    • libopenssl-3-fips-provider-3.5.0-160000.7.1
    • openssl-3-debuginfo-3.5.0-160000.7.1
    • openssl-3-3.5.0-160000.7.1
    • libopenssl3-debuginfo-3.5.0-160000.7.1
    • libopenssl-3-devel-3.5.0-160000.7.1

References: