Denial of service in VMware NSX-V Edge - CVE-2017-4920

 

Denial of service in VMware NSX-V Edge - CVE-2017-4920

Published: August 11, 2017 / Updated: August 15, 2017


Vulnerability identifier: #VU7876
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-4920
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: VMware, Inc
Affected software:
VMware NSX-V Edge

Detailed vulnerability description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to improper handling of the link-state advertisement (LSA) by implementation of the OSPF protocol. A local attacker can send a malicious LSA continuously between two routers and cause the system to stop functioning properly.

Successful exploitation of the vulnerability results in denial of service.

How to mitigate CVE-2017-4920

Update to version 6.2.8 or 6.3.3.

Sources