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openSUSE OpenSSL Significant Denial of Service Heap Overflow 2026-2405-1

opensuse
Calendar Grey June 16, 2026
Dist Opensuse Esm H88
Five important vulnerabilities in OpenSSL 1.1 resolved with this security update for openSUSE. Install recommendations provided.
An update that solves five vulnerabilities can now be installed.

Description

This update for openssl-1_1 fixes the following issues:

* CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7_verify() (bsc#1266357).

* CVE-2026-42766: Possible NULL Dereference in Password-Based CMS Decryption

(bsc#1266349).

* CVE-2026-9076: Out-of-Bounds Read in CMS Password-Based Decryption

(bsc#1266341).

* CVE-2026-7383: Possible Heap Buffer Overflow in ASN.1 Multibyte String

Conversion (bsc#1266340).

* CVE-2026-34180: Heap Buffer Over-read in ASN.1 Content Parsing

(bsc#1266342).

Topics%20covered

Topics Covered

security advisory denial of service important heap overflow OpenSUSE openssl-1_1

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 15.5

zypper in -t patch SUSE-2026-2405=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2405=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2405=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2405=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-2405=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2405=1

Package List

* openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)

* libopenssl1_1-1.1.1l-150500.17.57.2

* openssl-1_1-1.1.1l-150500.17.57.2

* libopenssl1_1-hmac-1.1.1l-150500.17.57.2

* libopenssl1_1-debuginfo-1.1.1l-150500.17.57.2

* openssl-1_1-debugsource-1.1.1l-150500.17.57.2

* libopenssl-1_1-devel-1.1.1l-150500.17.57.2

* openssl-1_1-debuginfo-1.1.1l-150500.17.57.2

* openSUSE Leap 15.5 (x86_64)

* libopenssl1_1-32bit-debuginfo-1.1.1l-150500.17.57.2

* libopenssl1_1-32bit-1.1.1l-150500.17.57.2

* libopenssl1_1-hmac-32bit-1.1.1l-150500.17.57.2

* libopenssl-1_1-devel-32bit-1.1.1l-150500.17.57.2

* openSUSE Leap 15.5 (noarch)

* openssl-1_1-doc-1.1.1l-150500.17.57.2

* openSUSE Leap 15.5 (aarch64_ilp32)

* libopenssl-1_1-devel-64bit-1.1.1l-150500.17.57.2

* libopenssl1_1-64bit-1.1.1l-150500.17.57.2

* libopenssl1_1-64bit-debuginfo-1.1.1l-150500.17.57.2

* libopenssl1_1-hmac-64bit-1.1.1l-150500.17.57.2

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64

x86_64)

* libopenssl1_1-1.1.1l-150500.17.57.2

*...

Read the Full Advisory

References

* bsc#1266340

* bsc#1266341

* bsc#1266342

* bsc#1266349

* bsc#1266357

## References:

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

* https://www.suse.com/security/cve/CVE-2026-42766.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=1266349

* https://bugzilla.suse.com/show_bug.cgi?id=1266357

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2405-1
Release Date: 2026-06-16T06:54:18Z
Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP5

Topics%20covered

Topics Covered

security advisory denial of service important heap overflow OpenSUSE openssl-1_1

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