Vulnerability Description
In Avast Antivirus before 19.4, a local administrator can trick the product into renaming arbitrary files by replacing the Logs\Update.log file with a symlink. The next time the product attempts to write to the log file, the target of the symlink is renamed. This defect can be exploited to rename a critical product file (e.g., AvastSvc.exe), causing the product to fail to start on the next system restart.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Avast | Antivirus | < 19.4 |
Related Weaknesses (CWE)
References
- http://www.mcerlane.co.uk/CVE-2019-11230/ExploitThird Party Advisory
- http://www.securityfocus.com/bid/109344Third Party Advisory
- http://www.mcerlane.co.uk/CVE-2019-11230/ExploitThird Party Advisory
- http://www.securityfocus.com/bid/109344Third Party Advisory
FAQ
What is CVE-2019-11230?
CVE-2019-11230 is a vulnerability with a CVSS score of 4.4 (MEDIUM). In Avast Antivirus before 19.4, a local administrator can trick the product into renaming arbitrary files by replacing the Logs\Update.log file with a symlink. The next time the product attempts to wr...
How severe is CVE-2019-11230?
CVE-2019-11230 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-11230?
Check the references section above for vendor advisories and patch information. Affected products include: Avast Antivirus.