Vulnerability identifier: #VU17211

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Sysinternals Sysmon
Client/Desktop applications / Software for system administration

Vendor: Microsoft

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.

Mitigation
Update to versions 8.04.

Vulnerable software versions

Sysinternals Sysmon: 7.01 - 8.02

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External links
http://social.technet.microsoft.com/Forums/en-US/b842c651-b617-4ba6-a799-1e199868730b/sysmon-memory...

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.