CVE-2019-3973 (GCVE-0-2019-3973)
Vulnerability from cvelistv5
Published
2019-07-17 20:41
Modified
2024-08-04 19:26
Severity ?
CWE
  • Denial of Service
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
vulnreport@tenable.comhttps://www.tenable.com/security/research/tra-2019-34Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/research/tra-2019-34Exploit, Third Party Advisory
Impacted products
Vendor Product Version
n/a Comodo Antivirus Version: Versions 11.0.0.6582 and below
Show details on NVD website

To clipboard 

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