A libgoogle-gson-java security update has been released for Debian GNU/Linux 9 LTS to address an issue that may lead to DoS attacks.

DLA 3001-1: libgoogle-gson-java security update

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Debian LTS Advisory DLA-3001-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Dominik George
May 13, 2022   https://wiki.debian.org/LTS
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Package : libgoogle-gson-java
Version : 2.4-1+deb9u1
CVE ID : CVE-2022-25647
Debian Bug : 1010670

It was discovered that the package com.google.code.gson:gson
before 2.8.9 is vulnerable to Deserialization of Untrusted Data
via the writeReplace() method in internal classes, which may
lead to DoS attacks.

For Debian 9 stretch, this problem has been fixed in version
2.4-1+deb9u1.

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/libgoogle-gson-java

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