Joined: 12 May 2004
|Posted: Sat Sep 15, 2007 11:26 pm Post subject: [ GLSA 200709-09 ] GNU Tar: Directory traversal vulnerabilit
|Gentoo Linux Security Advisory
Title: GNU Tar: Directory traversal vulnerability (GLSA 200709-09)
Date: September 15, 2007
A directory traversal vulnerability has been discovered in GNU Tar.
The GNU Tar program provides the ability to create tar archives, as well as various other kinds of manipulation.
Vulnerable: < 1.18-r2
Unaffected: >= 1.18-r2
Architectures: All supported architectures
Dmitry V. Levin discovered a directory traversal vulnerability in the contains_dot_dot() function in file src/names.c.
By enticing a user to extract a specially crafted tar archive, a remote attacker could extract files to arbitrary locations outside of the specified directory with the permissions of the user running GNU Tar.
There is no known workaround at this time.
All GNU Tar users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/tar-1.18-r2"