62510 : avast! Antivirus aavmker4.sys IOCTL Handling Memory Corruption
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	1690	about 3 years ago	over 2 years ago	13 times	100%

Timeline

Disclosure Date
2010-02-23

Time to Patch	Time to Vendor Response
18 days	5 days

Description

A memory corruption flaw exists in avast! antivirus. The program fails to sanitize user-supplied input via IOCTL resulting in memory corruption. Scanning of a specially crafted file could allow execution of arbitrary code.

Classification

Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public, Exploit Unknown
Disclosure: Vendor Verified

Solution

Upgrade to version 5.0.418 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

ALWIL Software	avast! antivirus	4.8
		5.0
		5.0.418.0

References

Security Tracker: 1023644
Exploit Database: 12406
CVE ID: 2010-0705 (see also: NVD)
Bugtraq ID: 38363
Secunia Advisory ID: 38677 38689
VUPEN Advisory: ADV-2010-0449
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2010-02/0212.html
Vendor Specific News/Changelog Entry: http://forum.avast.com/index.php?topic=55484.0
Other Advisory URL: http://tk-blog.blogspot.com/2010/02/fix-that-never-was.html
http://trapkit.de/advisories/TKADV2010-003.txt

Tools & Filters

	44876

Credit

Tobias Klein - Unaffiliated

CVSSv2 Score

CVSSv2 Base Score = 7.2
Source: nvd.nist.gov | Generated: 2010-02-26 | Disagree?

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