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openSUSE 15.6 OpenSSL-3 Major Buffer Overflow Fix for SUSE-SU-2026-2393-1

opensuse
Calendar Grey June 15, 2026
Dist Opensuse Esm H88
# Security update for openssl-3 Announcement ID: SUSE-SU-2026:2393-1 Release Date: 2026-06-15T08:06:
An update that solves nine vulnerabilities can now be installed.

Description

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-2026-34182: CMS AuthEnvelopedData Processing May Accept Forged Messages

(bsc#1266344).

* 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).

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE authentication error openssl-3

Patch

## 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-2026-2393=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2393=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2393=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* libopenssl-3-devel-3.1.4-150600.5.53.1

* libopenssl-3-fips-provider-3.1.4-150600.5.53.1

* openssl-3-debugsource-3.1.4-150600.5.53.1

* libopenssl3-debuginfo-3.1.4-150600.5.53.1

* openssl-3-3.1.4-150600.5.53.1

* openssl-3-debuginfo-3.1.4-150600.5.53.1

* libopenssl3-3.1.4-150600.5.53.1

* libopenssl-3-fips-provider-debuginfo-3.1.4-150600.5.53.1

* openSUSE Leap 15.6 (x86_64)

* libopenssl3-32bit-debuginfo-3.1.4-150600.5.53.1

* libopenssl-3-fips-provider-32bit-debuginfo-3.1.4-150600.5.53.1

* libopenssl-3-fips-provider-32bit-3.1.4-150600.5.53.1

* libopenssl-3-devel-32bit-3.1.4-150600.5.53.1

* libopenssl3-32bit-3.1.4-150600.5.53.1

* openSUSE Leap 15.6 (noarch)

* openssl-3-doc-3.1.4-150600.5.53.1

* openSUSE Leap 15.6 (aarch64_ilp32)

* libopenssl-3-fips-provider-64bit-3.1.4-150600.5.53.1

* libopenssl-3-fips-provider-64bit-debuginfo-3.1.4-150600.5.53.1

* libopenssl3-64bit-3.1.4-150600.5.53.1

* libopenssl3-64bit-debuginfo-3.1.4-150600.5.53.1

*...

Read the Full Advisory

References

* bsc#1266340

* bsc#1266341

* bsc#1266342

* bsc#1266344

* bsc#1266349

* bsc#1266353

* bsc#1266355

* bsc#1266356

* bsc#1266357

## References:

* https://www.suse.com/security/cve/CVE-2026-34180.html

* https://www.suse.com/security/cve/CVE-2026-34182.html

* https://www.suse.com/security/cve/CVE-2026-42766.html

* https://www.suse.com/security/cve/CVE-2026-42770.html

* https://www.suse.com/security/cve/CVE-2026-45445.html

* https://www.suse.com/security/cve/CVE-2026-45446.html

* https://www.suse.com/security/cve/CVE-2026-45447.html

* https://www.suse.com/security/cve/CVE-2026-7383.html

* https://www.suse.com/security/cve/CVE-2026-9076.html

* https://bugzilla.suse.com/show_bug.cgi?id=1266340

* https://bugzilla.suse.com/show_bug.cgi?id=1266341

* https://bugzilla.suse.com/show_bug.cgi?id=1266342

* https://bugzilla.suse.com/show_bug.cgi?id=1266344

* https://bugzilla.suse.com/show_bug.cgi?id=1266349

* https://bugzilla.suse.com/show_bug.cgi?id=1266353

* https://bugzilla.suse.com/show_bug.cgi?id=1266355

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2393-1
Release Date: 2026-06-15T08:06:07Z
Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP6

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE authentication error openssl-3

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