CVE-2009-4049

Published: Nov 23, 2009Modified: Apr 23, 2026

7.2

Vector

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

Exploitability: 3.9 / Impact: 10.0

Source: NVD

Description

Heap-based buffer overflow in aswRdr.sys (aka the TDI RDR driver) in avast! Home and Professional 4.8.1356.0 allows local users to cause a denial of service (memory corruption) or possibly gain privileges via crafted arguments to IOCTL 0x80002024.

Affected (2)

Products: Avast: Avast Antivirus Home, Avast Antivirus Professional

Avast

2 products

Avast Antivirus Home

Avast Antivirus Professional

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Avast Avast Antivirus Home	Version 4.8.1356.0
Avast Avast Antivirus Professional	Version 4.8.1356.0

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (12)

http://secunia.com/advisories/37368

Source: cve@mitre.org

Vendor Advisory

http://www.efblog.net/2009/11/avast-aswrdrsys-kernel-pool-corruption.html

Source: cve@mitre.org

http://www.securityfocus.com/archive/1/507891/100/0/threaded

Source: cve@mitre.org

http://www.securityfocus.com/bid/37031

Source: cve@mitre.org

Exploit

http://www.vupen.com/english/advisories/2009/3266

Source: cve@mitre.org

Vendor Advisory

https://www.evilfingers.com/advisory/Advisory/Avast_aswRdr_sys_Kernel_Pool_Corruption_and_Local_Privilege_Escalation.php

Source: cve@mitre.org

http://secunia.com/advisories/37368