Debian Security Advisory

DLA-2616-1 libxstream-java -- LTS security update

Date Reported:
03 Apr 2021
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 985843.
In Mitre's CVE dictionary: CVE-2021-21341, CVE-2021-21342, CVE-2021-21343, CVE-2021-21344, CVE-2021-21345, CVE-2021-21346, CVE-2021-21347, CVE-2021-21348, CVE-2021-21349, CVE-2021-21350, CVE-2021-21351.
More information:

In XStream there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream.

The type hierarchies for, java.nio.channels.Channel, javax.activation.DataSource and javax.sql.rowsel.BaseRowSet are now blacklisted as well as the individual types,$NameProcessIterator, sun.awt.datatransfer.DataTransferer$IndexOrderComparator, and sun.swing.SwingLazyValue. Additionally the internal type Accessor$GetterSetterReflection of JAXB, the internal types MethodGetter$PrivilegedGetter and ServiceFinder$ServiceNameIterator of JAX-WS, all inner classes of javafx.collections.ObservableList and an internal ClassLoader used in a private BCEL copy are now part of the default blacklist and the deserialization of XML containing one of the types will fail. You will have to enable these types by explicit configuration, if you need them.

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your libxstream-java packages.

For the detailed security status of libxstream-java please refer to its security tracker page at:

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