CVE-2024-4603

A flaw was found in OpenSSL. Applications that use the EVP_PKEY_param_check() or EVP_PKEY_public_check() function to check a DSA public key or DSA parameters may experience long delays when checking excessively long DSA keys or parameters.  In applications that allow untrusted sources to provide the key or parameters that are checked, an attacker may be able to cause a denial of service. These functions are not called by OpenSSL on untrusted DSA keys. The applications that directly call these functions are the ones that may be vulnerable to this issue.

Only OpenSSL 3.3, 3.2, 3.1 and 3.0 are vulnerable to this issue. OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.