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openSUSE 15.5 Advisory 2026-2397-1 Openssl 3 Important Buffer Overflow

suse
Calendar Grey June 15, 2026
Dist Suse Esm H88
Security update for openssl-3 resolves multiple issues with important severity. Install promptly for protection.
An update that solves eight vulnerabilities can now be installed.

Summary

## This update for openssl-3 fixes the following issues * CVE-2026-7383: Possible Heap Buffer Overflow in ASN.1 Multibyte String Conversion (bsc#1266340). * CVE-2026-9076: Out-of-Bounds Read in CMS Password-Based Decryption (bsc#1266341). * CVE-2026-34180: Heap Buffer Over-read in ASN.1 Content Parsing (bsc#1266342). * CVE-2026-42766: Possible NULL Dereference in Password-Based CMS Decryption (bsc#1266349). * CVE-2026-42770: FFC-DH Peer Validation Uses Attacker-Supplied q (bsc#1266353). * CVE-2026-45445: AES-OCB IV Ignored on EVP_Cipher() Path (bsc#1266355). * CVE-2026-45446: Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes (bsc#1266356). * CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7_verify() (bsc#1266357). ## Patch Instructions:

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important out-of-bounds openssl-3

References

* bsc#1266340

* bsc#1266341

* bsc#1266342

* bsc#1266349

* bsc#1266353

* bsc#1266355

* bsc#1266356

* bsc#1266357

Cross-

* CVE-2026-34180

* CVE-2026-42766

* CVE-2026-42770

* CVE-2026-45445

* CVE-2026-45446

* CVE-2026-45447

* CVE-2026-7383

* CVE-2026-9076

CVSS scores:

* CVE-2026-34180 ( SUSE ): 6.3

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

* CVE-2026-34180 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-34180 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-42766 ( SUSE ): 6.8

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

* CVE-2026-42766 ( SUSE ): 5.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

* CVE-2026-42766 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2397-1
Release Date: 2026-06-15T14:34:41Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important out-of-bounds openssl-3

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