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2003: 2,700 advisories published
2004: 3,100 advisories published
2005: 4,600 advisories published
2006: 5,300 advisories published

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TITLE:
WinPcap NPF.SYS "bpf_filter_init" Array Indexing Vulnerability

SECUNIA ADVISORY ID:
SA27676

VERIFY ADVISORY:
http://secunia.com/advisories/27676/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
WinPcap 4.x
http://secunia.com/product/13899/

DESCRIPTION:
A vulnerability has been reported in WinPcap, which can be exploited
by malicious, local users to gain escalated privileges.

The vulnerability is caused due to an array indexing error within the
bpf_filter_init function and can be exploited to cause a memory
corruption via specially-crafted IOCTL requests.

Successful exploitation allows execution of arbitrary code with
kernel privileges.

The vulnerability is reported in version 4.0.1 included in Wireshark
version 0.99.6a. Prior versions may also be affected.

SOLUTION:
Update to version 4.0.2.
http://www.winpcap.org/install/default.htm

PROVIDED AND/OR DISCOVERED BY:
Discovered by an anonymous researcher and reported via iDefense Labs.

ORIGINAL ADVISORY:
WinPcap:
http://www.winpcap.org/misc/changelog.htm

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=625

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About:
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