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TITLE:
tcpdump 802.11 "parse_elements()" Off-By-One Vulnerability

SECUNIA ADVISORY ID:
SA24318

VERIFY ADVISORY:
http://secunia.com/advisories/24318/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
tcpdump 3.x
http://secunia.com/product/749/

DESCRIPTION:
Moritz Jodeit has reported a vulnerability in tcpdump, which
potentially can be exploited by malicious people to cause a DoS
(Denial of Service).

The vulnerability is caused due to an off-by-one error within the
"parse_elements()" function in print-802.11.c. This can be exploited
to cause a one byte buffer overflow via a specially crafted 802.11
frame.

The vulnerability is reported in version 3.9.5. Other versions may
also be affected.

SOLUTION:
Fixed in the CVS repository.

PROVIDED AND/OR DISCOVERED BY:
Moritz Jodeit

ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2007-March/052739.html

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About:
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