SUSE alert SUSE-SU-2026:1577-1 (openssl-1_1)

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SUSE-SU-2026:1577-1: important: Security update for openssl-1_1
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Thu, 23 Apr 2026 20:31:37 -0000
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<177697629782.1901.16407692792773549216@a0a563bcf2df>
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Article


# 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



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