ALPINE-CVE-2022-3786

ALPINE-CVE-2022-3786

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · Fix available

Published

2022-11-01T18:15:11.047Z

Updated

2026-10-15T07:17:54.243006495Z

Stack: system · network

Check your server →