[USN-7368-1] SnakeYAML vulnerability

-----BEGIN PGP SIGNATURE-----
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=os7a
-----END PGP SIGNATURE-----
==========================================================================
Ubuntu Security Notice USN-7368-1
March 27, 2025

snakeyaml vulnerability
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

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

Software Description:
- snakeyaml: YAML parser and emitter for the Java programming language

Details:

It was discovered that SnakeYAML incorrectly handled recursive
entity references. An attacker could possibly use this issue to
cause SnakeYAML 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 20.04 LTS
  libyaml-snake-java              1.25+ds-2ubuntu0.1+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  libyaml-snake-java              1.23-1+deb10u1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  libyaml-snake-java              1.12-2ubuntu0.16.04.1~esm2
                                  Available with Ubuntu Pro

Ubuntu 14.04 LTS
  libyaml-snake-java              1.12-2ubuntu0.14.04.1~esm2
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-7368-1
  CVE-2017-18640