CVE-2020-26217

Name	CVE-2020-26217
Description	XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2471-1, DSA-4811-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libxstream-java (PTS)	bullseye (security), bullseye	1.4.15-3+deb11u2	fixed
	bookworm	1.4.20-1	fixed
	sid, trixie	1.4.21-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
libxstream-java	source	stretch	1.4.9-2+deb9u1	DLA-2471-1
libxstream-java	source	buster	1.4.11.1-1+deb10u1	DSA-4811-1
libxstream-java	source	(unstable)	1.4.14-1

Notes

https://x-stream.github.io/CVE-2020-26217.html
https://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2
https://github.com/x-stream/xstream/commit/0fec095d534126931c99fd38e9c6d41f5c685c1a