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openSUSE OpenSSL Critical Buffer Overflow Update SUSE-2026-2411-1

suse
Calendar Grey June 16, 2026
Dist Suse Esm H88
Critical security update for openssl-3-livepatches in openSUSE addresses four serious issues requiring immediate action.
An update that solves four vulnerabilities and has one security fix can now be installed.

Summary

## This update for openssl-3-livepatches fixes the following issues: * CVE-2025-11187: Improper validation of PBMAC1 parameters in PKCS#12 MAC verification (bsc#1256878). * CVE-2025-15467: Stack buffer overflow in CMS AuthEnvelopedData parsing (bsc#1256876). * CVE-2025-15468: NULL dereference in SSL_CIPHER_find() function on unknown cipher ID (bsc#1256880). * CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7_verify() (bsc#1266389, bsc#1266357). ## 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-2026-2411=1 * SUSE Linux Enterprise Live Patching 15-SP6

Topics%20covered

Topics Covered

security advisory security issue buffer overflow critical OpenSUSE openssl-3-livepatches

References

* bsc#1256876

* bsc#1256878

* bsc#1256880

* bsc#1266357

* bsc#1266389

Cross-

* CVE-2025-11187

* CVE-2025-15467

* CVE-2025-15468

* CVE-2026-45447

CVSS scores:

* CVE-2025-11187 ( SUSE ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2025-11187 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-11187 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H

* CVE-2025-15467 ( SUSE ): 9.3

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2025-15467 ( SUSE ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-15467 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2025-15468 ( SUSE ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Severity
critical
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2411-1
Release Date: 2026-06-16T08:07:30Z
Rating: critical

Topics%20covered

Topics Covered

security advisory security issue buffer overflow critical OpenSUSE openssl-3-livepatches

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