|
avast! Home/Professional Multiple Vulnerabilities
|
|
Secunia Advisory:
|
SA36858
|
|
|
Release Date:
|
2009-09-24
|
|
Last Update:
|
2009-10-23
|
|
Popularity:
|
5,316 views
|
|
|
Critical:
|
Less critical
|
|
Impact:
|
Privilege escalation
DoS
|
|
Where:
|
Local system
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | avast! Home/Professional 4.x
|
|
|
Secunia CVSS-2 Score:
|
Available in Secunia business solutions 
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
|
| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
|
Description:
Some vulnerabilities have been reported in avast! Home/Professional, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or gain escalated privileges.
1) A boundary error exists in the "aswMon2" kernel driver when processing IOCTLs. This can be exploited to cause a stack-based buffer overflow via a specially crafted 0xB2C80018 IOCTL.
The vulnerability is confirmed in avast! Professional version 4.8.1351. Other versions may also be affected.
2) An error in the AavmKer4.sys kernel driver can be exploited to corrupt memory via a specially crafted 0xB2D6000C or 0xB2D60034 IOCTL.
Successful exploitation of the vulnerabilities may allow execution of arbitrary code with SYSTEM privileges.
3) The application sets insecure permissions on the "DATA" directory. This can be exploited to e.g. load an arbitrary library with escalated privileges by modifying the "ISAPIFilter1" parameter in avast4.ini.
The vulnerabilities are reported in versions prior to 4.8.1356.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
