-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT Security Bulletin
avast! 4.8.1356 released
2 October 2009
AusCERT Security Bulletin Summary
Product: avast! Home/Professional
Operating System: Windows
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
CVE Names: CVE-2009-3524 CVE-2009-3523 CVE-2009-3522
Member content until: Wednesday, October 28 2009
Revision History: October 2 2009: Added CVE References
September 28 2009: Initial Release
avast! have released Home/Professional version 4.8.1356 correcting a
number of security vulnerabilities.
The vendor has provided the following information regarding these
* solved a memory leak in the GZIP unpacker
* solved vulnerabilities in AavmKer4.sys, aswMon2.sys and
Exploit code for some of these vulnerabilities had been made public.
AusCERT confirmed the exploit code relating to the aswMon2.sys
vulnerability was able to cause a denial of service.
Users can update to the latest version to correct these issues.
 avast! 4 Home/Professional Revision History
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: email@example.com
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----