Security update for openssl-1_0_0

Announcement ID:	SUSE-SU-2026:1256-1
Release Date:	2026-04-10T14:57:45Z
Rating:	important
References:	bsc#1260441 bsc#1260442 bsc#1260443 bsc#1260444 bsc#1260445
Cross-References:	CVE-2026-28387 CVE-2026-28388 CVE-2026-28389 CVE-2026-31789 CVE-2026-31790
CVSS scores:	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-2026-28389 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2026-31789 ( 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 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 five vulnerabilities can now be installed.

Description:

This update for openssl-1_0_0 fixes the following issues:

• CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
• CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#1260442).
• CVE-2026-28389: Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
• CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#1260444).
• CVE-2026-31790: Incorrect failure handling in RSA KEM RSASVE encapsulation (bsc#1260445).

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-2026-1256=1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-1256=1

Package List:

• SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
  • libopenssl1_0_0-hmac-1.0.2p-3.106.1
  • openssl-1_0_0-debugsource-1.0.2p-3.106.1
  • libopenssl-1_0_0-devel-1.0.2p-3.106.1
  • openssl-1_0_0-1.0.2p-3.106.1
  • libopenssl1_0_0-1.0.2p-3.106.1
  • openssl-1_0_0-debuginfo-1.0.2p-3.106.1
  • libopenssl1_0_0-debuginfo-1.0.2p-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
  • openssl-1_0_0-doc-1.0.2p-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (s390x x86_64)
  • libopenssl1_0_0-32bit-1.0.2p-3.106.1
  • libopenssl-1_0_0-devel-32bit-1.0.2p-3.106.1
  • libopenssl1_0_0-debuginfo-32bit-1.0.2p-3.106.1
  • libopenssl1_0_0-hmac-32bit-1.0.2p-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
  • libopenssl-1_0_0-devel-32bit-1.0.2p-3.106.1
  • libopenssl1_0_0-hmac-1.0.2p-3.106.1
  • openssl-1_0_0-debugsource-1.0.2p-3.106.1
  • libopenssl-1_0_0-devel-1.0.2p-3.106.1
  • libopenssl1_0_0-32bit-1.0.2p-3.106.1
  • openssl-1_0_0-1.0.2p-3.106.1
  • libopenssl1_0_0-hmac-32bit-1.0.2p-3.106.1
  • libopenssl1_0_0-1.0.2p-3.106.1
  • openssl-1_0_0-debuginfo-1.0.2p-3.106.1
  • libopenssl1_0_0-debuginfo-32bit-1.0.2p-3.106.1
  • libopenssl1_0_0-debuginfo-1.0.2p-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
  • openssl-1_0_0-doc-1.0.2p-3.106.1

References:

• https://www.suse.com/security/cve/CVE-2026-28387.html
• https://www.suse.com/security/cve/CVE-2026-28388.html
• https://www.suse.com/security/cve/CVE-2026-28389.html
• https://www.suse.com/security/cve/CVE-2026-31789.html
• https://www.suse.com/security/cve/CVE-2026-31790.html
• https://bugzilla.suse.com/show_bug.cgi?id=1260441
• https://bugzilla.suse.com/show_bug.cgi?id=1260442
• https://bugzilla.suse.com/show_bug.cgi?id=1260443
• https://bugzilla.suse.com/show_bug.cgi?id=1260444
• https://bugzilla.suse.com/show_bug.cgi?id=1260445