Debian: DSA-5227-1 Moderate: Gson Java Library De-serialization Flaw

It was discovered that Gson, a Java library that can be used to convert Java
Objects into their JSON representations and vice versa, was vulnerable to a de-
serialization flaw. An application would de-serialize untrusted data without
sufficiently verifying that the resulting data will be valid, letting the
attacker to control the state or the flow of the execution. This can lead to a
denial of service or even the execution of arbitrary code.

For the stable distribution (bullseye), this problem has been fixed in
version 2.8.6-1+deb11u1.

We recommend that you upgrade your libgoogle-gson-java packages.

For the detailed security status of libgoogle-gson-java please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libgoogle-gson-java

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/