CVE-2022-3786

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

• openssl openssl (>= 3.0.0 < 3.0.7) • fedoraproject fedora 36 • fedoraproject fedora 37 • nodejs node.js (>= 18.0.0 < 18.11.0) • nodejs node.js 18.12.0 • nodejs node.js 19.0.0