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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.0205
                          libtar security update
                             19 February 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libtar
Publisher:         Debian
Operating System:  Debian GNU/Linux 6
                   Debian GNU/Linux 7
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Overwrite Arbitrary Files -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-4420  

Original Bulletin: 
   http://www.debian.org/security/2014/dsa-2863

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running libtar check for an updated version of the software for 
         their operating system.

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Debian Security Advisory DSA-2863-1                   security@debian.org
http://www.debian.org/security/                             Luciano Bello
February 18, 2014                      http://www.debian.org/security/faq
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Package        : libtar
Vulnerability  : directory traversal
CVE ID         : CVE-2013-4420
Debian Bug     : 731860

A directory traversal attack was reported against libtar, a C library for
manipulating tar archives. The application does not validate the
filenames inside the tar archive, allowing to extract files in arbitrary
path. An attacker can craft a tar file to override files beyond the
tar_extract_glob and tar_extract_all prefix parameter.

For the oldstable distribution (squeeze), this problem has been fixed in
version 1.2.11-6+deb6u2.

For the stable distribution (wheezy), this problem has been fixed in
version 1.2.16-1+deb7u2.

For the unstable distribution (sid), this problem has been fixed in
version 1.2.20-2.

We recommend that you upgrade your libtar packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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===========================================================================
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