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additions to the Secunia Advisories and have started translating the
advisories to German.

The improvements will help our customers to get a better
understanding of how we reached our conclusions, how it was rated,
our thoughts on exploitation, attack vectors, and scenarios.

This includes:
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TITLE:
GNU tar "GNUTYPES_NAMES" Record Type Security Issue

SECUNIA ADVISORY ID:
SA23115

VERIFY ADVISORY:
http://secunia.com/advisories/23115/

CRITICAL:
Moderately critical

IMPACT:
Manipulation of data

WHERE:
>From remote

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

DESCRIPTION:
Teemu Salmela has reported a security issue in GNU tar, which can be
exploited by malicious people to overwrite arbitrary files.

The security issue is caused due to the "extract_archive()" function
in extract.c and the "extract_mangle()" function in mangle.c still
processing the deprecated "GNUTYPE_NAMES" record type containing
symbolic links. This can be exploited to overwrite arbitrary files by
e.g. tricking a user into unpacking a specially crafted tar file.

The security issue is reported in version 1.15.1 and 1.16. Other
versions may also be affected.

SOLUTION:
Do not extract untrusted archives.

PROVIDED AND/OR DISCOVERED BY:
Teemu Salmela

ORIGINAL ADVISORY:
http://archives.neohapsis.com/archives/fulldisclosure/2006-11/0344.html

https://savannah.gnu.org/bugs/index.php?18355

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