Rapid7 Vulnerability & Exploit Database

F5 Networks: K21665601 (CVE-2018-0732): OpenSSL vulnerability CVE-2018-0732

Back to Search

F5 Networks: K21665601 (CVE-2018-0732): OpenSSL vulnerability CVE-2018-0732

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
06/12/2018
Created
07/25/2018
Added
07/22/2018
Modified
05/05/2019

Description

During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).

Solution(s)

  • f5-big-ip-upgrade-latest

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;