Home/CVE/Heap-based buffer overflow in aswRdr.sys (aka the TDI RDR driver) in avast! Home and Professional 4.8.1356.0 allows loca
CVE

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 loca

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.

HIGH · CVSS 7.2 EPSS 0.00403
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

2
avast antivirus homeall versions
avast antivirus professionalall versions
⚠

Public Exploits & PoCs

2
localAvast! AntiVirus 4.8.1356 - 'aswRdr.sys' Driver Privilege Escalationverified
pocwww.securityfocus.com · 37031www.securityfocus.com
▣

Scoring & Timeline

7.2
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:L/AC:L/Au:N/C:C/I:C/A:C
Published to NVD23 Nov 2009 · 05:30 PM
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://secunia.com/advisories/37368Vendor Advisory
http://www.efblog.net/2009/11/avast-aswrdrsys-kernel-pool-corruption.html
http://www.securityfocus.com/archive/1/507891/100/0/threaded
http://www.vupen.com/english/advisories/2009/3266Vendor Advisory
https://www.evilfingers.com/advisory/Advisory/Avast_aswRdr_sys_Kernel_Pool_Corruption_and_Local_Privilege_Escalation.php
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