CVE-2022-3786

Updated: 2023-11-07 19:20:23.306885

Description:

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0
CVSS Version 3.x HIGH 7.5

Status

OS name Project name Version Score Severity Status Errata Last updated
AlmaLinux 9.2 ESU openssl 3.0.7 7.5 HIGH Already Fixed 2023-11-08 08:35:54
AlmaLinux 9.2 FIPS openssl 3.0.7 7.5 HIGH Already Fixed 2023-11-27 10:09:05
CentOS 6 ELS openssl 1.0.1e 7.5 HIGH Not Vulnerable 2022-11-02 08:02:32
CentOS 8.4 ELS openssl 1.1.1g 7.5 HIGH Not Vulnerable 2022-11-02 08:02:31
CentOS 8.5 ELS openssl 1.1.1k 7.5 HIGH Not Vulnerable 2022-11-02 08:02:31
CloudLinux 6 ELS openssl 1.0.1e 7.5 HIGH Not Vulnerable 2022-11-02 08:02:32
Oracle Linux 6 ELS openssl 1.0.1e 7.5 HIGH Not Vulnerable 2022-11-02 08:02:32
Ubuntu 16.04 ELS openssl 1.0.2g-1 7.5 HIGH Not Vulnerable 2022-11-02 08:02:32