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Foresight: tar Print E-mail
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Posted by Bill Keys   
Previous versions of the tar package are vulnerable to an attack in which unpacking an intentionally-malformed tar archive can overwrite arbitrary files to which the user running tar has write access. If the attacking user knows the name of a vulnerable binary file and overwrites it, this allows the attacker to place arbitrary code on the system which is likely to be run. If root is running tar, this includes any file on the system, which would elevate this to an indirect non-deterministic remote root unauthorized access vulnerability.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Foresight Linux Essential Advisory: 2007-0049-1
Published: 2007-08-27

Rating: Severe

Updated Versions:
    tar=/conary.rpath.com at rpl:devel//1/1.15.1-7.2-1
    group-dist=/foresight.rpath.org at fl:1-devel//1/1.3.2-0.10-1

References:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2001-1267
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0399
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4131
    https://issues.rpath.com/browse/RPL-1631

Description:
    Previous versions of the tar package are vulnerable to an attack in
    which unpacking an intentionally-malformed tar archive can overwrite
    arbitrary files to which the user running tar has write access.  If the
    attacking user knows the name of a vulnerable binary file and overwrites
    it, this allows the attacker to place arbitrary code on the system which
    is likely to be run.  If root is running tar, this includes any file on
    the system, which would elevate this to an indirect non-deterministic
    remote root unauthorized access vulnerability.

- ---

Copyright 2007 Foresight Linux Project
This file is distributed under the terms of the MIT License.
A copy is available at http://www.foresightlinux.org/permanent/mit-license.html
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pqYxERJoh5zq9L/zVehiNw4=
=IbBY
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