| ID |
CVE-2019-3973
|
| Summary |
Comodo Antivirus versions 11.0.0.6582 and below are vulnerable to Denial of Service affecting CmdGuard.sys via its filter port "cmdServicePort". A low privileged process can crash CmdVirth.exe to decrease the port's connection count followed by process hollowing a CmdVirth.exe instance with malicious code to obtain a handle to "cmdServicePort". Once this occurs, a specially crafted message can be sent to "cmdServicePort" using "FilterSendMessage" API. This can trigger an out-of-bounds write if lpOutBuffer parameter in FilterSendMessage API is near the end of specified buffer bounds. The crash occurs when the driver performs a memset operation which uses a size beyond the size of buffer specified, causing kernel crash. |
| References |
|
| Vulnerable Configurations |
|
| CVSS |
| Base: | 4.9 (as of 23-07-2019 - 18:19) |
| Impact: | |
| Exploitability: | |
|
| CWE |
CWE-787 |
| CAPEC |
|
| Access |
| Vector | Complexity | Authentication |
| LOCAL |
LOW |
NONE |
|
| Impact |
| Confidentiality | Integrity | Availability |
| NONE |
NONE |
COMPLETE |
|
| cvss-vector
via4
|
AV:L/AC:L/Au:N/C:N/I:N/A:C
|
| refmap
via4
|
|
| Last major update |
23-07-2019 - 18:19 |
| Published |
17-07-2019 - 21:15 |
| Last modified |
23-07-2019 - 18:19 |
