Description
In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.
Remediation
References
Related Vulnerabilities
IBM WebSEAL Insufficiently Protected Credentials Vulnerability (CVE-2021-20439)
TYPO3 Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2013-4321)
WordPress Plugin Top Quark Architecture 'script.php' Arbitrary File Upload (2.1.0)
Jenkins Use of Insufficiently Random Values Vulnerability (CVE-2020-2099)