TITLE:
Ethereal OSPF Protocol Dissector Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA17973

VERIFY ADVISORY:
http://secunia.com/advisories/17973/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Ethereal 0.x
http://secunia.com/product/1228/

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

The vulnerability is caused due to a boundary error in the
dissect_ospf_v3_address_prefix() function of the OSPF protocol
dissector (packet-ospf.c) when converting received binary data to a
human readable string. This can be exploited to cause a stack-based
buffer overflow and may potentially allow arbitrary code execution on
certain platforms.

The vulnerability has been reported in ethereal-0.10.12 RPM from Red
Hat Fedora Core 3. Version 0.10.13 and prior may also affected.

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

PROVIDED AND/OR DISCOVERED BY:
Discovered by anonymous and reported via iDEFENSE.

ORIGINAL ADVISORY:
iDEFENSE:
http://www.idefense.com/application/poi/display?id=349&type=vulnerabilities

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