Vulnerability CVE-2010-0705
Published: 2010-02-25   Modified: 2012-02-13

Description:
Aavmker4.sys in avast! 4.8 through 4.8.1368.0 and 5.0 before 5.0.418.0 running on Windows 2000 and XP does not properly validate input to IOCTL 0xb2d60030, which allows local users to cause a denial of service (system crash) or execute arbitrary code to gain privileges via IOCTL requests using crafted kernel addresses that trigger memory corruption.

See advisories in our WLB2 database:
Topic
Author
Date
High
avast! 4.8 and 5.0 aavmker4.sys Kernel Memory Corruption
Tobias Klein
02.03.2010

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Avast -> Avast antivirus home 
Avast -> Avast antivirus professional 

 References:
http://forum.avast.com/index.php?topic=55484.0
http://www.securityfocus.com/archive/1/509710/100/0/threaded
http://www.securityfocus.com/bid/38363
http://www.securitytracker.com/id?1023644
http://www.trapkit.de/advisories/TKADV2010-003.txt
http://www.vupen.com/english/advisories/2010/0449
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