TITLE:
hcidump Bluetooth L2CAP Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA18741

VERIFY ADVISORY:
http://secunia.com/advisories/18741/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
hcidump 1.x
http://secunia.com/product/7830/

DESCRIPTION:
Pierre Betouin has reported a vulnerability in hcidump, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in the handling of the
L2CAP (Logical Link Control and Adaptation Layer Protocol) layer in
"l2cap.c". This can be exploited to crash hcidump by sending a L2CAP
packet with a specially crafted header through a wireless Bluetooth
connection.

The vulnerability has been reported in version 1.29. Other versions
may also be affected.

SOLUTION:
Restrict access to the wireless Bluetooth interface.

PROVIDED AND/OR DISCOVERED BY:
Pierre Betouin

ORIGINAL ADVISORY:
http://www.secuobs.com/news/05022006-bluetooth9.shtml#english

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