SUSE-SU-2026:1256-1: important: Security update for openssl-1_0_0

[SLE-UPDATES]

# 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

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.suse.com/pipermail/sle-updates/attachments/20260410/66c9fc47/attachment.htm>