1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200709-09 / tar |
| Release Date | September 15, 2007 |
| Latest Revision | September 15, 2007: 01 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| app-arch/tar | < 1.18-r2 | >= 1.18-r2 | All supported architectures |
Related bugreports: #189682
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.
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:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/tar-1.18-r2" |