Nodejs CVE-2022-3786 Buffer Overflow Vulnerability

description-logoDescription

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.

description-logoOutbreak Alert

An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack in X.509 certificate verification, specifically, in name constraint checking. This buffer overflow could result in a crash which can cause a denial of service or potentially a remote code execution.

View the full Outbreak Alert Report

affected-products-logoAffected Applications

Nodejs

CVE References

CVE-2022-3786