CVE-2021-21350

XStream is a Java library to serialize objects to XML and back again. In
XStream before version 1.4.16, there is a vulnerability which may allow a
remote attacker to execute arbitrary code only by manipulating the
processed input stream. No user is affected, who followed the
recommendation to setup XStream’s security framework with a whitelist
limited to the minimal required types. If you rely on XStream’s default
blacklist of the Security Framework, you will have to use at least version
1.4.16.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=985843&gt;