The par_mktmpdir function in the PAR::Packer module before 1.012 for Perl creates temporary files in a directory with a predictable name without verifying ownership and permissions of this directory, which allows local users to overwrite files when another user extracts a PAR packed program. NOTE: a similar vulnerability was reported for PAR, but this has been assigned a different CVE identifier.
lists.fedoraproject.org/pipermail/package-announce/2011-December/071091.html
lists.fedoraproject.org/pipermail/package-announce/2011-December/071099.html
www.openwall.com/lists/oss-security/2011/11/04/2
www.openwall.com/lists/oss-security/2011/11/04/4
bugzilla.redhat.com/show_bug.cgi?id=753955
rt.cpan.org/Public/Bug/Display.html?id=69560