TITLE:
BZFlag "callsign" Handling Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA18238

VERIFY ADVISORY:
http://secunia.com/advisories/18238/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
BZFlag 2.x
http://secunia.com/product/6675/

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

The vulnerability is caused due to an error in the server when
handling callsigns that are not NULL terminated. This may be
exploited to crash the game server on certain platforms via specially
crafted callsigns sent from the game client.

The vulnerability has been reported in version 2.0.0 through 2.0.4.

SOLUTION:
The vulnerability has reportedly been fixed in the CVS repositories.

PROVIDED AND/OR DISCOVERED BY:
Independently discovered by:
1) Luigi Auriemma
2) Vendor

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/bzflagboom-adv.txt

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