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avast! Home/Professional aavmker4.sys Privilege Escalation
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Secunia Advisory:
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SA29605
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Release Date:
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2008-03-31
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Last Update:
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2008-04-11
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Popularity:
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4,577 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | avast! Home/Professional 4.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2008-1625
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Description:
Tobias Klein has reported a vulnerability in avast! Home/Professional, which can be exploited by malicious, local users to gain escalated privileges.
An input validation error within the 0xb2d60030 IOCTL handler of the aavmker4.sys driver can be exploited e.g. to overwrite arbitrary kernel memory via a specially crafted IOCTL request.
The vulnerability is reported in version 4.7. Other versions may also be affected.
Solution:
Update to version 4.8.1169.
http://www.avast.com/eng/download.html
Provided and/or discovered by:
Tobias Klein
Changelog:
2008-04-11: Added CVE reference.
Original Advisory:
avast!:
http://www.avast.com/eng/avast-4-home_pro-revision-history.html
Tobias Klein:
http://www.trapkit.de/advisories/TKADV2008-002.txt
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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