CVE-2020-17521

Name	CVE-2020-17521
Description	Apache Groovy provides extension methods to aid with creating temporary directories. Prior to this fix, Groovy's implementation of those extension methods was using a now superseded Java JDK method call that is potentially not secure on some operating systems in some contexts. Users not using the extension methods mentioned in the advisory are not affected, but may wish to read the advisory for further details. Versions Affected: 2.0 to 2.4.20, 2.5.0 to 2.5.13, 3.0.0 to 3.0.6, and 4.0.0-alpha-1. Fixed in versions 2.4.21, 2.5.14, 3.0.7, 4.0.0-alpha-2.
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)
NVD severity	low
Debian Bugs	977399

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
groovy (PTS)	stretch	2.4.8-1	vulnerable
	buster	2.4.16-2	vulnerable
	bullseye, sid	2.4.21-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
groovy	source	(unstable)	2.4.21-1			977399
groovy2	source	(unstable)	(unfixed)

Notes

[buster] - groovy <no-dsa> (Minor issue)
[stretch] - groovy <no-dsa> (Minor issue)
https://issues.apache.org/jira/browse/GROOVY-9824
https://www.openwall.com/lists/oss-security/2020/12/06/1
https://github.com/apache/groovy/commit/4e418d4a34c973a7ec1e822552103043ac13780e (GROOVY_2_4_21)