Input validation error in Avast Antivirus - CVE-2020-10864
Published: April 2, 2020
Vulnerability identifier: #VU26542
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-10864
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe). A remote attacker can trigger a reboot via RPC from a Low Integrity process.
Affected software
Avast Antivirus
How to mitigate CVE-2020-10864
Install updates from vendor's website.
Avast Antivirus - update to 20.1.2397