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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
# Security update for openssl-1_1 Announcement ID: SUSE-SU-2026:2405-1 Release Date: 2026-06-16T06:5
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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