USN-7752-1: libyang vulnerabilities

Publication date

16 September 2025

Overview

libyang could be made to crash if it received specially crafted input.

Releases


Packages

  • libyang2 - parser toolkit for IETF YANG data modeling

Details

It was discovered that libyang incorrectly handled certain memory
operations when parsing YANG strings. An attacker could possibly use this
issue to cause libyang to crash, resulting in a denial of service.

It was discovered that libyang incorrectly handled certain memory
operations when parsing YANG strings. An attacker could possibly use this
issue to cause libyang to crash, resulting in a denial of service.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
24.04 noble libyang2t64 –  2.1.30-2.1ubuntu0.1

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