CVE-2021-21341

Published: 23 March 2021

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service 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.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
libxstream-java
Launchpad, Ubuntu, Debian
Upstream
Released (1.4.16)
Ubuntu 21.10 (Impish Indri)
Released (1.4.15-2)
Ubuntu 21.04 (Hirsute Hippo)
Released (1.4.15-1ubuntu0.1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (1.4.11.1-1ubuntu0.2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.4.11.1-1~18.04.2)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end of standard support, was needs-triage)
Ubuntu 14.04 ESM (Trusty Tahr) Needs triage