CVE-2022-45142: High severity heimdal vulnerability

Published Mar 6, 2023

Updated

The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by adding "!= 0" comparisons to the result of memcmp. When these patches were backported to the heimdal-7.7.1 and heimdal-7.8.0 branches (and possibly other branches) a logic inversion sneaked in causing the validation of message integrity codes in gssapi/arcfour to be inverted.

Affected Software

2 affected components

Heimdal Project Heimdal=7.7.1

Heimdal Project Heimdal=7.8.0

Event History

Mar 6, 2023

CVE Published

via MITRE·12:00 AM

Data Sourced

via MITRE·12:00 AM

DescriptionWeakness

Frequently Asked Questions

What is CVE-2022-45142?

CVE-2022-45142 is a vulnerability that affects Heimdal Project Heimdal versions 7.7.1 and 7.8.0, potentially other branches.

What is the severity of CVE-2022-45142?

The severity of CVE-2022-45142 is high, with a severity value of 7.5.

What is the description of CVE-2022-45142?

CVE-2022-45142 is a vulnerability in Heimdal Project Heimdal that involves a logic inversion in the backported patches for fixing CVE-2022-3437.

How does CVE-2022-45142 affect Heimdal Project Heimdal?

CVE-2022-45142 affects Heimdal Project Heimdal versions 7.7.1 and 7.8.0, potentially other branches.

Are there any references for CVE-2022-45142?

Yes, you can find references for CVE-2022-45142 at the following links: [Reference 1](https://security.gentoo.org/glsa/202310-06), [Reference 2](https://www.openwall.com/lists/oss-security/2023/02/08/1).