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Published: 2 June 2015

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.

From the Ubuntu Security Team

It was discovered that Parallel incorrectly handled symlinks. An attacker could possibly use this issue to insert, edit or obtain sensitive information.




Package Release Status
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
cosmic Not vulnerable
precise Does not exist

Released (20161222-1~ubuntu0.14.04.1)
Released (20150522)
utopic Ignored
(end of life)
vivid Ignored
(end of life)
wily Ignored
(end of life)
Released (20161222-1~ubuntu0.16.04.1)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
This vulnerability is mitigated in part by the use of symlink restrictions in Ubuntu.