SUSE OpenSSL Important Null Dereference Buffer Overflow Fix 2026-1386-1
suse
April 16, 2026
An update that solves five vulnerabilities can now be installed.
Summary
## 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: * Basesystem Module 15-SP7
Topics Covered
References
* bsc#1260441
* bsc#1260442
* bsc#1260443
* bsc#1260444
* bsc#1261678
Cross-
* 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-2026-28388 ( 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-2026-28390 ( 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
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Severity
important
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Announcement ID: SUSE-SU-2026:1386-1
Release Date: 2026-04-16T09:17:21Z
Rating: important
Topics Covered
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