Buffer overflow in Avast Antivirus Home
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.2 (High). Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.011 (65.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Avast Antivirus Home — versions 4.8.1356.0
- Avast Antivirus Professional — versions 4.8.1356.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/37031 (Exploit, vdb-entry)
- www.vupen.com/english/advisories/2009/3266 (vdb-entry, Vendor Advisory)
- secunia.com/advisories/37368 (Vendor Advisory, third-party-advisory)
- www.efblog.net/2009/11/avast-aswrdrsys-kernel-pool-corruption.html
- www.securityfocus.com/archive/1/507891/100/0/threaded (mailing-list)
- www.evilfingers.com/advisory/Advisory/Avast_aswRdr_sys_Kernel_Pool_Corruption_a…
Frequently asked questions
- What is CVE-2009-4049?
- CVE-2009-4049 is a vulnerability in Avast Antivirus Home, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2009-11-23.
- Is CVE-2009-4049 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.