7.5

CVE-2022-45142: heimdal_project heimdal

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2022-45142MGASA-2023-0098UBUNTU-CVE-2022-45142
Published 06-03-2023Last modified 06-03-2025
Open JSON

Vulnerability summary

CVE-2022-45142 is a high (CVSS 7.5) vulnerability in heimdal_project heimdal. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 40.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.49%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 2
CGA-95P5-5MPQ-3743CGA-H7J3-G9PF-QCFH

Timeline

  1. 06-03-2023
    PublishedVulnerability first disclosed.
  2. 06-03-2025
    Last modifiedVulnerability information updated.

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 metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

0.00 pp

From 0.49% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • heimdal< 7.7.1-r1 | < 7.7.1-r0 | < 7.8.0-r1 | < 7.8.0-r2
Chainguard1 product
  • heimdal< 7.8.0-r1
Debian1 product
  • heimdal< 7.7.0+dfsg-2+deb11u3 | < 7.5.0+dfsg-3+deb10u2 | < 7.8.git20221117.28daf24+dfsg-1.1
Heimdal_project1 product
Mageia1 product
  • heimdal< 7.7.1-1.3.mga8
Ubuntu1 product
  • heimdal< 1.6~git20131207+dfsg-1ubuntu1.2+esm4 | < 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm4 | < 7.5.0+dfsg-1ubuntu0.4 | < 7.7.0+dfsg-1ubuntu1.4 | All versions (No fix recorded)
Wolfi1 product
  • heimdal< 7.8.0-r1

7 vendors · 7 products

References

12 links
Show all 12 references