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).
Remediation
References
Related Vulnerabilities
WordPress Plugin SP Project & Document Manager Arbitrary File Upload (4.22)
MediaWiki Credentials Management Errors Vulnerability (CVE-2015-8626)
WordPress Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2009-3890)