Local Denial of Service Vulnerability in Comodo Antivirus (Versions up to 12.0.0.6810)

CVE-2019-3971 · LOW Severity

AV:L/AC:L/AU:N/C:N/I:N/A:P

Comodo Antivirus versions up to 12.0.0.6810 are vulnerable to a local Denial of Service affecting CmdVirth.exe via its LPC port "cmdvrtLPCServerPort". A low privileged local process can connect to this port and send an LPC_DATAGRAM, which triggers an Access Violation due to hardcoded NULLs used for Source parameter in a memcpy operation that is called for this handler. This results in CmdVirth.exe and its child svchost.exe instances to terminate.

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