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TITLE:
GNU tar Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA26573

VERIFY ADVISORY:
http://secunia.com/advisories/26573/

CRITICAL:
Less critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
GNU Tar 1.x
http://secunia.com/product/8214/

DESCRIPTION:
A vulnerability has been reported in GNU tar, which can be exploited
by malicious people to compromise a user's system.

The vulnerability is caused due to an input validation error when
extracting tar archives. This can be exploited to extract files to
arbitrary locations outside the specified directory with the
permissions of the user running GNU tar by using the ".." directory
traversal sequence in a specially crafted tar archive.

The vulnerability is reported in version 1.18. Other versions may
also be affected.

SOLUTION:
Fixed in the CVS repository.

PROVIDED AND/OR DISCOVERED BY:
Red Hat credits Dmitry V. Levin.

ORIGINAL ADVISORY:
http://rhn.redhat.com/errata/RHSA-2007-0860.html

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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