CVE-2009-4049

high

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.

References

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

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

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

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

http://secunia.com/advisories/37368

Details

Source: Mitre, NVD

Published: 2009-11-23

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H