Security update for openssl-1_1

Announcement ID:	SUSE-SU-2026:1577-1
Release Date:	2026-04-23T15:53:50Z
Rating:	important
References:	bsc#1260441 bsc#1260442 bsc#1260443 bsc#1260444 bsc#1261678
Cross-References:	CVE-2026-28387 CVE-2026-28388 CVE-2026-28389 CVE-2026-28390 CVE-2026-31789
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-2026-28387 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H 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-2026-28388 ( 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-2026-28389 ( 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-2026-28390 ( 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-2026-31789 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server 15 SP6 LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP6

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-2026-28390: 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).

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:

• openSUSE Leap 15.6
  zypper in -t patch SUSE-2026-1577=1
• SUSE Linux Enterprise Server 15 SP6 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1577=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1577=1

Package List:

• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
  • openssl-1_1-debugsource-1.1.1w-150600.5.26.2
  • libopenssl1_1-1.1.1w-150600.5.26.2
  • openssl-1_1-1.1.1w-150600.5.26.2
  • libopenssl-1_1-devel-1.1.1w-150600.5.26.2
  • openssl-1_1-debuginfo-1.1.1w-150600.5.26.2
  • libopenssl1_1-debuginfo-1.1.1w-150600.5.26.2
• openSUSE Leap 15.6 (x86_64)
  • libopenssl1_1-32bit-debuginfo-1.1.1w-150600.5.26.2
  • libopenssl-1_1-devel-32bit-1.1.1w-150600.5.26.2
  • libopenssl1_1-32bit-1.1.1w-150600.5.26.2
• openSUSE Leap 15.6 (noarch)
  • openssl-1_1-doc-1.1.1w-150600.5.26.2
• openSUSE Leap 15.6 (aarch64_ilp32)
  • libopenssl-1_1-devel-64bit-1.1.1w-150600.5.26.2
  • libopenssl1_1-64bit-debuginfo-1.1.1w-150600.5.26.2
  • libopenssl1_1-64bit-1.1.1w-150600.5.26.2
• SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
  • openssl-1_1-debugsource-1.1.1w-150600.5.26.2
  • libopenssl1_1-1.1.1w-150600.5.26.2
  • openssl-1_1-1.1.1w-150600.5.26.2
  • libopenssl-1_1-devel-1.1.1w-150600.5.26.2
  • openssl-1_1-debuginfo-1.1.1w-150600.5.26.2
  • libopenssl1_1-debuginfo-1.1.1w-150600.5.26.2
• SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)
  • libopenssl1_1-32bit-debuginfo-1.1.1w-150600.5.26.2
  • libopenssl1_1-32bit-1.1.1w-150600.5.26.2
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
  • openssl-1_1-debugsource-1.1.1w-150600.5.26.2
  • libopenssl1_1-1.1.1w-150600.5.26.2
  • openssl-1_1-1.1.1w-150600.5.26.2
  • libopenssl-1_1-devel-1.1.1w-150600.5.26.2
  • openssl-1_1-debuginfo-1.1.1w-150600.5.26.2
  • libopenssl1_1-debuginfo-1.1.1w-150600.5.26.2
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)
  • libopenssl1_1-32bit-debuginfo-1.1.1w-150600.5.26.2
  • libopenssl1_1-32bit-1.1.1w-150600.5.26.2

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-2026-28390.html
• https://www.suse.com/security/cve/CVE-2026-31789.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=1261678