==========================================================================
Ubuntu Security Notice USN-7629-1
July 09, 2025

protobuf vulnerabilities
==========================================================================

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

- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

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

Software Description:
- protobuf: protocol buffers data serialization library

Details:

It was discovered that Protocol Buffers incorrectly handled memory when
receiving malicious input using the Python bindings. An attacker could
possibly use this issue to cause a denial of service. (CVE-2025-4565)

It was discovered that Protocol Buffers incorrectly handled memory when
receiving malicious input using the Java bindings. An attacker could
possibly use this issue to cause a denial of service. This issue only
affected Ubuntu 25.04. (CVE-2024-7254)

Update instructions:

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

Ubuntu 25.04
  libprotobuf-java                3.21.12-10ubuntu0.1
  python3-protobuf                3.21.12-10ubuntu0.1

Ubuntu 24.04 LTS
  libprotobuf-java                3.21.12-8.2ubuntu0.2
  python3-protobuf                3.21.12-8.2ubuntu0.2

Ubuntu 22.04 LTS
  libprotobuf-java                3.12.4-1ubuntu7.22.04.4
  python3-protobuf                3.12.4-1ubuntu7.22.04.4

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

References:
  https://ubuntu.com/security/notices/USN-7629-1
  CVE-2024-7254, CVE-2025-4565

Package Information:
  https://launchpad.net/ubuntu/+source/protobuf/3.21.12-10ubuntu0.1
  https://launchpad.net/ubuntu/+source/protobuf/3.21.12-8.2ubuntu0.2
  https://launchpad.net/ubuntu/+source/protobuf/3.12.4-1ubuntu7.22.04.4