Skip to main content

CVE-2018-0732

7.5
HIGHCVSS v3.1 Base Score
78.38%
HIGH RiskEPSS (99th percentile)

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).

Published: 6/12/2018
Modified: 11/21/2024
Back to CVE Lookup

Vulnerability Summary

CVSS v3 Score

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score (Exploitation Probability)

78.38%HIGH Exploitation Risk
99th percentile

This vulnerability has a 78.38% probability of being exploited in the next 30 days, ranking higher than 99% of all scored CVEs.

Related Vulnerabilities