Home/CVE/aavmKer4.sys in avast! Home and Professional for Windows before 4.8.1356 does not properly validate input to IOCTLs (1)
CVE

CVE-2009-3523

aavmKer4.sys in avast! Home and Professional for Windows before 4.8.1356 does not properly validate input to IOCTLs (1)

aavmKer4.sys in avast! Home and Professional for Windows before 4.8.1356 does not properly validate input to IOCTLs (1) 0xb2d6000c and (2) 0xb2d60034, which allows local users to gain privileges via IOCTL requests using crafted kernel addresses that trigger memory corruption, a different vulnerability than CVE-2008-1625.

MEDIUM · CVSS 6.9 EPSS 0.00158
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

4
avast antivirus home<= 4.8.1351
avast antivirus homeall versions
avast antivirus professional<= 4.8.1351
avast antivirus professionalall versions
⚠

Public Exploits & PoCs

2
localAvast! 4.7 - 'aavmker4.sys' Local Privilege Escalationverified
pocwww.ntinternals.org · ntiadv0904.htmlwww.ntinternals.org
▣

Scoring & Timeline

6.9
MEDIUM · 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:M/Au:N/C:C/I:C/A:C
Published to NVD01 Oct 2009 · 05:00 PM
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://secunia.com/advisories/36858Vendor Advisory
http://www.avast.com/eng/avast-4-home_pro-revision-history.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6024
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