ESB-2026.3418
PUBLISHED
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AUSCERT External Security Bulletin Redistribution
ESB-2026.3418
Security update for openssl-3
9 April 2026
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AUSCERT Security Bulletin Summary
---------------------------------
Product: openssl-3
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2026-28387 CVE-2026-28388 CVE-2026-28389
CVE-2026-31789 CVE-2026-31790
Original Bulletin:
https://www.suse.com/support/update/announcement/2026/suse-su-20261214-1
Comment: CVSS (Max): 7.3* CVE-2026-31789 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
* Not all CVSS available when published
EPSS (Max): 0.0% (8th) CVE-2026-28389 2026-04-08
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Security update for openssl-3
Announcement ID: SUSE-SU-2026:1214-1
Release Date: 2026-04-08T12:27:50Z
Rating: important
o bsc#1260441
o bsc#1260442
References: o bsc#1260443
o bsc#1260444
o bsc#1260445
o CVE-2026-28387
o CVE-2026-28388
Cross-References: o CVE-2026-28389
o CVE-2026-31789
o CVE-2026-31790
o 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
o 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
o CVE-2026-31789 ( SUSE ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N
CVSS scores: /S:U/C:L/I:L/A:L
o 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
o 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
o openSUSE Leap 15.4
o SUSE Linux Enterprise High Performance Computing 15 SP4
o SUSE Linux Enterprise High Performance Computing ESPOS 15
SP4
o SUSE Linux Enterprise High Performance Computing LTSS 15
Affected SP4
Products: o SUSE Linux Enterprise Micro 5.3
o SUSE Linux Enterprise Micro 5.4
o SUSE Linux Enterprise Micro for Rancher 5.3
o SUSE Linux Enterprise Micro for Rancher 5.4
o SUSE Linux Enterprise Server 15 SP4
o SUSE Linux Enterprise Server 15 SP4 LTSS
o SUSE Linux Enterprise Server for SAP Applications 15 SP4
An update that solves five vulnerabilities can now be installed.
Description:
This update for openssl-3 fixes the following issues:
o CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
o CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#
1260442).
o CVE-2026-28389: Possible NULL dereference when processing CMS
KeyAgreeRecipientInfo (bsc#1260443).
o CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#
1260444).
o 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:
o openSUSE Leap 15.4
zypper in -t patch SUSE-2026-1214=1
o SUSE Linux Enterprise Micro for Rancher 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-1214=1
o SUSE Linux Enterprise Micro 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-1214=1
o SUSE Linux Enterprise Micro for Rancher 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-1214=1
o SUSE Linux Enterprise Micro 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-1214=1
o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1214=1
o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1214=1
o SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1214=1
o SUSE Linux Enterprise Server for SAP Applications 15 SP4
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1214=1
Package List:
o openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
openssl-3-3.0.8-150400.4.81.1
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
openssl-3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl-3-devel-3.0.8-150400.4.81.1
o openSUSE Leap 15.4 (x86_64)
libopenssl3-32bit-debuginfo-3.0.8-150400.4.81.1
libopenssl3-32bit-3.0.8-150400.4.81.1
libopenssl-3-devel-32bit-3.0.8-150400.4.81.1
o openSUSE Leap 15.4 (noarch)
openssl-3-doc-3.0.8-150400.4.81.1
o openSUSE Leap 15.4 (aarch64_ilp32)
libopenssl3-64bit-3.0.8-150400.4.81.1
libopenssl-3-devel-64bit-3.0.8-150400.4.81.1
libopenssl3-64bit-debuginfo-3.0.8-150400.4.81.1
o SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
o SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
o SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
o SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
x86_64)
openssl-3-3.0.8-150400.4.81.1
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
openssl-3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl-3-devel-3.0.8-150400.4.81.1
o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
x86_64)
openssl-3-3.0.8-150400.4.81.1
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
openssl-3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl-3-devel-3.0.8-150400.4.81.1
o SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
openssl-3-3.0.8-150400.4.81.1
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
openssl-3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl-3-devel-3.0.8-150400.4.81.1
o SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
openssl-3-3.0.8-150400.4.81.1
openssl-3-debugsource-3.0.8-150400.4.81.1
libopenssl3-3.0.8-150400.4.81.1
openssl-3-debuginfo-3.0.8-150400.4.81.1
libopenssl3-debuginfo-3.0.8-150400.4.81.1
libopenssl-3-devel-3.0.8-150400.4.81.1
References:
o https://www.suse.com/security/cve/CVE-2026-28387.html
o https://www.suse.com/security/cve/CVE-2026-28388.html
o https://www.suse.com/security/cve/CVE-2026-28389.html
o https://www.suse.com/security/cve/CVE-2026-31789.html
o https://www.suse.com/security/cve/CVE-2026-31790.html
o https://bugzilla.suse.com/show_bug.cgi?id=1260441
o https://bugzilla.suse.com/show_bug.cgi?id=1260442
o https://bugzilla.suse.com/show_bug.cgi?id=1260443
o https://bugzilla.suse.com/show_bug.cgi?id=1260444
o https://bugzilla.suse.com/show_bug.cgi?id=1260445
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