Vulnerability Monitor

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CVE-2009-4049

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.

Published

2009-11-23T17:30:00.670

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.2 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	avast	avast_antivirus_home	4.8.1356.0	Yes
Application	avast	avast_antivirus_professional	4.8.1356.0	Yes

References

http://secunia.com/advisories/37368 Vendor Advisory ([email protected])
http://www.efblog.net/2009/11/avast-aswrdrsys-kernel-pool-corruption.html ([email protected])
http://www.securityfocus.com/archive/1/507891/100/0/threaded ([email protected])
http://www.securityfocus.com/bid/37031 Exploit ([email protected])
http://www.vupen.com/english/advisories/2009/3266 Vendor Advisory ([email protected])
https://www.evilfingers.com/advisory/Advisory/Avast_aswRdr_sys_Kernel_Pool_Corruption_and_Local_Privilege_Escalation.php ([email protected])
http://secunia.com/advisories/37368 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.efblog.net/2009/11/avast-aswrdrsys-kernel-pool-corruption.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/507891/100/0/threaded (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/37031 Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/3266 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.evilfingers.com/advisory/Advisory/Avast_aswRdr_sys_Kernel_Pool_Corruption_and_Local_Privilege_Escalation.php (af854a3a-2127-422b-91ae-364da2661108)