Memory leak in Sysinternals Sysmon - #VU17211

 

Memory leak in Sysinternals Sysmon - #VU17211

Published: January 25, 2019


Vulnerability identifier: #VU17211
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Sysinternals Sysmon

Detailed vulnerability description

The vulnerability allows a remote attacker to cause DoS condition.

The weakness exists due to Sysmon's driver (SysmonDrv.sys) consumes new area in Nonpaged pool memory every time configuration reloads, but driver does not free old area in Nonpaged pool memory. A remote attacker can trigger memory leak and cause the service to crash.

Remediation

Update to versions 8.04.

Sources