Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).

CA API Developer Portal 4.3.1 and earlier handles shared secret keys in an insecure manner, which allows attackers to bypass authorization.

CA API Developer Portal 4.3.1 and earlier contains an access control flaw that allows privileged users to perform a restricted user administration action.

CA API Developer Portal 4.3.1 and earlier contains an access control flaw that allows privileged users to view restricted sensitive information.

CA API Developer Portal 4.3.1 and earlier contains an access control flaw that allows malicious users to elevate privileges.

CA API Developer Portal 4.3.1 and earlier handles 404 requests in an insecure manner, which allows attackers to perform open redirect attacks.

CA API Developer Portal 4.3.1 and earlier handles loginRedirect page redirects in an insecure manner, which allows attackers to perform open redirect attacks.

CA API Developer Portal 4.3.1 and earlier handles homeRedirect page redirects in an insecure manner, which allows attackers to perform open redirect attacks.

CA API Developer Portal 4.3.1 and earlier handles requests insecurely, which allows remote attackers to exploit a Cross-Origin Resource Sharing flaw and access sensitive information.

CA API Developer Portal 4.3.1 and earlier contains an access control flaw that allows privileged users to view and edit user data.