TITLE:
F-Secure Content Scanner Server Exception Handling Denial of Service

SECUNIA ADVISORY ID:
SA12492

VERIFY ADVISORY:
http://secunia.com/advisories/12492/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From local network

SOFTWARE:
F-Secure Internet Gatekeeper 6.x
http://secunia.com/product/3339/
F-Secure Anti-Virus for Microsoft Exchange 6.x
http://secunia.com/product/454/

DESCRIPTION:
A vulnerability has been reported in F-Secure Internet Gatekeeper and
F-Secure Anti-Virus for Microsoft Exchange, which can be exploited by
malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the exception
handling in the F-Secure Content Scanner Server component. This can
be exploited to crash a process in the component via specially
crafted packets.

NOTE: The process is reportedly started automatically by a watchdog
service.

SOLUTION:
Update to F-Secure Internet Gatekeeper 6.40 or F-Secure Anti-Virus
for Microsoft Exchange 6.30 or apply F-Secure Content Scanner Server
6.31 hotfix 4.

F-Secure Internet Gatekeeper 6.32 and prior:
ftp://ftp.f-secure.com/support/hotfix/fsig/fscss631-04.fsfix

F-Secure Anti-Virus for Microsoft Exchange 6.01 and prior and 6.21
and prior:
ftp://ftp.f-secure.com/support/hotfix/fsav-mse/fscss631-04.fsfix

PROVIDED AND/OR DISCOVERED BY:
iDEFENSE

ORIGINAL ADVISORY:
http://www.f-secure.com/security/fsc-2004-2.shtml

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