CVE-2022-45142
HIGH
Published Mar 6, 20233y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
Published Mar 6, 2023 3y ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None
Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-354
Affected Products 2
| Vendor | Product | Version | Range |
|---|---|---|---|
| heimdal_project | heimdal | 7.7.1 | any |
| heimdal_project | heimdal | 7.8.0 | any |
References 2
- security.gentoo.org https://security.gentoo.org/glsa/202310-06
- openwall.com https://www.openwall.com/lists/oss-security/2023/02/08/1
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.