Alerts This Week
Warning Icon 1 854
Alerts This Week
Warning Icon 1 854

openSUSE libyang Important Buffer Overflow Advisory 2026-2381-1

opensuse
Calendar Grey June 12, 2026
Dist Opensuse Esm H88
Important update for openSUSE fixing integer overflow in libyang leading to buffer overflow vulnerability.
An update that solves one vulnerability can now be installed.

Description

This update for libyang fixes the following issue

* CVE-2026-44673: integer overflow in `lyb_read_string()` of

`src/parser_lyb.c` leads to heap buffer overflow when parsing a maliciously

crafted LYB binary blob (bsc#1265330).

Topics%20covered

Topics Covered

security advisory buffer overflow important integer overflow OpenSUSE libyang

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 15.3

zypper in -t patch SUSE-2026-2381=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2381=1

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2381=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2381=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2381=1

Package List

* openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)

* libyang-devel-1.0.184-150300.3.9.1

* yang-tools-debuginfo-1.0.184-150300.3.9.1

* yang-tools-1.0.184-150300.3.9.1

* libyang-cpp-devel-1.0.184-150300.3.9.1

* libyang-extentions-debuginfo-1.0.184-150300.3.9.1

* libyang1-debuginfo-1.0.184-150300.3.9.1

* python3-yang-1.0.184-150300.3.9.1

* python3-yang-debuginfo-1.0.184-150300.3.9.1

* libyang-debuginfo-1.0.184-150300.3.9.1

* libyang-extentions-1.0.184-150300.3.9.1

* libyang-cpp1-1.0.184-150300.3.9.1

* libyang-cpp1-debuginfo-1.0.184-150300.3.9.1

* libyang1-1.0.184-150300.3.9.1

* libyang-debugsource-1.0.184-150300.3.9.1

* openSUSE Leap 15.3 (noarch)

* libyang-doc-1.0.184-150300.3.9.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64

x86_64)

* libyang-extentions-debuginfo-1.0.184-150300.3.9.1

* libyang1-debuginfo-1.0.184-150300.3.9.1

* libyang-debuginfo-1.0.184-150300.3.9.1

* libyang-extentions-1.0.184-150300.3.9.1

* libyang1-1.0.184-150300.3.9.1

*...

Read the Full Advisory

References

* bsc#1265330

## References:

* https://www.suse.com/security/cve/CVE-2026-44673.html

* https://bugzilla.suse.com/show_bug.cgi?id=1265330

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2381-1
Release Date: 2026-06-12T06:50:59Z
Affected Products: * openSUSE Leap 15.3 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP4

Topics%20covered

Topics Covered

security advisory buffer overflow important integer overflow OpenSUSE libyang

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here