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Debian Security Advisory DSA-4811-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
December 15, 2020 https://www.debian.org/security/faq
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Package : libxstream-java
CVE ID : CVE-2020-26217
It was discovered that the default blacklist of XStream, a Java library
to serialise objects to XML and back again, was vulnerable to the
execution of arbitrary shell commands by manipulating the processed
input stream.
For additional defense-in-depth it is recommended to switch to the
whitelist approach of XStream’s security framework. For additional
information please refer to
https://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2
For the stable distribution (buster), this problem has been fixed in
version 1.4.11.1-1+deb10u1.
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:
https://security-tracker.debian.org/tracker/libxstream-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/
Mailing list: debian-security-announce@lists.debian.org
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