Joined: 12 May 2004
|Posted: Mon Dec 11, 2006 10:26 pm Post subject: [ GLSA 200612-10 ] Tar: Directory traversal vulnerability
|Gentoo Linux Security Advisory
Title: Tar: Directory traversal vulnerability (GLSA 200612-10)
Date: December 11, 2006
Tar is vulnerable to directory traversal possibly allowing for the overwriting of arbitrary files.
The Tar program provides the ability to create and manipulate tar archives.
Vulnerable: < 1.16-r2
Unaffected: >= 1.16-r2
Architectures: All supported architectures
Tar does not properly extract archive elements using the GNUTYPE_NAMES record name, allowing files to be created at arbitrary locations using symlinks. Once a symlink is extracted, files after the symlink in the archive will be extracted to the destination of the symlink.
An attacker could entice a user to extract a specially crafted tar archive, possibly allowing for the overwriting of arbitrary files on the system extracting the archive.
There is no known workaround at this time.
All Tar users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/tar-1.16-r2"