|Description||XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream with a Java runtime version 14 to 8. 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](https://x-stream.github.io/security.html#framework), you will have to use at least version 1.4.18.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)|
|References||DLA-2769-1, DSA-5004-1, ELA-488-1|
Vulnerable and fixed packages
The table below lists information on source packages.
|libxstream-java (PTS)||jessie, jessie (lts)||188.8.131.52-1+deb8u5||fixed|
|stretch (security), stretch (lts), stretch||184.108.40.206-1+deb9u5||fixed|
|buster, buster (security)||220.127.116.11-1+deb10u3||fixed|
|bullseye (security), bullseye||1.4.15-3+deb11u1||fixed|
The information below is based on the following data on fixed versions.