[USN-7752-1] libyang vulnerabilities

[noreply+usn-bot at canonical.com]

==========================================================================
Ubuntu Security Notice USN-7752-1
September 16, 2025

libyang2 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.04 LTS

Summary:

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

Software Description:
- 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.

Update instructions:

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

Ubuntu 24.04 LTS
  libyang2t64                     2.1.30-2.1ubuntu0.1

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

References:
  https://ubuntu.com/security/notices/USN-7752-1
  CVE-2023-26916, CVE-2023-26917

Package Information:
  https://launchpad.net/ubuntu/+source/libyang2/2.1.30-2.1ubuntu0.1
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