ESB-2026.3517 — Vulnetix

ESB-2026.3517 PUBLISHED CVSS 7.5 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3517 Security update for openssl-1_0_0 13 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: openssl-1_0_0 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-20261256-1 Comment: CVSS (Max): 7.5 CVE-2026-28388 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVSS Source: [CISA-ADP], SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H EPSS (Max): 0.0% (15th) CVE-2026-28389 2026-04-12 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for openssl-1_0_0 Announcement ID: SUSE-SU-2026:1256-1 Release Date: 2026-04-10T14:57:45Z 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 SUSE Linux Enterprise High Performance Computing 12 SP5 o SUSE Linux Enterprise Server 12 SP5 Affected o SUSE Linux Enterprise Server 12 SP5 LTSS Products: o SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security o 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: 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 SUSE Linux Enterprise Server 12 SP5 LTSS zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-1256=1 o 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: o 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 o SUSE Linux Enterprise Server 12 SP5 LTSS (noarch) openssl-1_0_0-doc-1.0.2p-3.106.1 o 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 o 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 o SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch) openssl-1_0_0-doc-1.0.2p-3.106.1 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 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
SUSE	openssl-1_0_0

Timeline

Apr 13, 2026 CVE Published

References

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