CVE-2022-45142

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductHeimdal

PublishedMar 6, 2023

First seenMar 6, 2023

Weakness typeCWE-354CWE-354

How to fix

Vendor advisories

security.gentoo.org/glsa/202310-06

Affected products

Product	Affected versions	Fixed in
heimdal_project heimdal	7.7.1, 7.8.0	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.