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Test ID:1.3.6.1.4.1.25623.1.0.801111
Category:Buffer overflow
Title:avast! Multiple Vulnerabilities (Oct 2009) - Windows
Summary:avast! AntiVirus is prone to multiple vulnerabilities.
Description:Summary:
avast! AntiVirus is prone to multiple vulnerabilities.

Vulnerability Insight:
- 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.

- An error in the 'AavmKer4.sys' kernel driver that can be exploited to
corrupt memory via a specially crafted 0xB2D6000C or 0xB2D60034 IOCTL.

- An unspecified error exists in the ashWsFtr.dll library which can be
exploited to cause unknown impact.

Vulnerability Impact:
Successful exploitation will let the local attackers to cause a Denial of
Service or gain escalated privileges on the victim's system.

Affected Software/OS:
avast! Home and Professional version prior to 4.8.1356 on Windows.

Solution:
Upgrade to avast! version 4.8.1356 or later.

CVSS Score:
7.2

CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2009-3522
BugTraq ID: 36507
http://www.securityfocus.com/bid/36507
Bugtraq: 20090923 Avast aswMon2.sys kernel memory corruption and Local Privilege Escalation. (Google Search)
http://www.securityfocus.com/archive/1/506681/100/0/threaded
https://www.evilfingers.com/advisory/Advisory/Avast_aswMon2.sys_kernel_memory_corruption_and_Local_Privilege_Escalation.php
http://osvdb.org/58402
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6226
http://www.securitytracker.com/id?1022940
http://secunia.com/advisories/36858
http://www.vupen.com/english/advisories/2009/2761
XForce ISS Database: avast-aswmon2-bo(53456)
https://exchange.xforce.ibmcloud.com/vulnerabilities/53456
Common Vulnerability Exposure (CVE) ID: CVE-2009-3523
http://www.ntinternals.org/ntiadv0904/ntiadv0904.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6024
Common Vulnerability Exposure (CVE) ID: CVE-2009-3524
http://osvdb.org/58403
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6509
CopyrightCopyright (C) 2009 Greenbone AG

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