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TITLE:
Dns2tcp "dns_decode()" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA32514

VERIFY ADVISORY:
http://secunia.com/advisories/32514/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Dns2tcp 0.x
http://secunia.com/advisories/product/19774/

DESCRIPTION:
A vulnerability has been reported in Dns2tcp, which can be exploited
by malicious people to cause a DoS (Denial of Service) and
potentially compromise a vulnerable system.

The vulnerability is caused due to a boundary error within the
"dns_decode()" function in server/dns_decode.c. This can be exploited
to cause a buffer overflow via specially crafted encoded DNS data.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in versions prior to 0.4.2.

SOLUTION:
Update to version 0.4.2.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits John Lampe.

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