CVE-2019-3971

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.

CVSS v3.0

5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

2.1 LOWAV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS

0.37% chance of exploitation in the next 30 days, 30th percentile

Published

2019-07-17

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://www.tenable.com/security/research/tra-2019-34

References

• CVE Record
• NVD entry

Related

• CVE-2019-3970
• CVE-2019-3972
• CVE-2019-3969
• CVE-2019-3973
• CVE-2019-3968
• CVE-2019-3978