Security update for openssl-1_1

Announcement ID:	SUSE-SU-2026:1216-1
Release Date:	2026-04-08T12:28:22Z
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 Micro 5.2 SUSE Linux Enterprise Micro for Rancher 5.2

An update that solves five vulnerabilities can now be installed.

Description:

This update for openssl-1_1 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 Micro 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1216=1
• SUSE Linux Enterprise Micro for Rancher 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1216=1

Package List:

• SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
  • libopenssl1_1-debuginfo-1.1.1d-150200.11.109.1
  • libopenssl1_1-hmac-1.1.1d-150200.11.109.1
  • libopenssl-1_1-devel-1.1.1d-150200.11.109.1
  • openssl-1_1-1.1.1d-150200.11.109.1
  • openssl-1_1-debuginfo-1.1.1d-150200.11.109.1
  • libopenssl1_1-1.1.1d-150200.11.109.1
  • openssl-1_1-debugsource-1.1.1d-150200.11.109.1
• SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
  • libopenssl1_1-debuginfo-1.1.1d-150200.11.109.1
  • libopenssl1_1-hmac-1.1.1d-150200.11.109.1
  • libopenssl-1_1-devel-1.1.1d-150200.11.109.1
  • openssl-1_1-1.1.1d-150200.11.109.1
  • openssl-1_1-debuginfo-1.1.1d-150200.11.109.1
  • libopenssl1_1-1.1.1d-150200.11.109.1
  • openssl-1_1-debugsource-1.1.1d-150200.11.109.1

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