CVE-2015-4156

Name	CVE-2015-4156
Description	GNU Parallel before 20150522 (Nepal), when using (1) --cat or (2) --fifo with --sshlogin, allows local users to write to arbitrary files via a symlink attack on a temporary file.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	787954

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
parallel (PTS)	bullseye	20161222-1.1	fixed
	bookworm	20221122+ds-2	fixed
	forky, sid, trixie	20240222+ds-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
parallel	source	(unstable)	20161222-1	unimportant		787954

Notes

https://lists.gnu.org/archive/html/parallel/2015-04/msg00045.html
https://lists.gnu.org/archive/html/parallel/2015-05/msg00024.html
Not exploitable with kernel hardening since wheezy