Double Free in Heimdal Project
CVE-2022-44640
Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (78.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/heimdal/heimdal/security/advisories/GHSA-88pm-hfmq-7vv4 (Third Party Advisory)
- security.netapp.com/advisory/ntap-20230216-0008/ (Third Party Advisory)
- security.gentoo.org/glsa/202310-06 (vendor-advisory)
Frequently asked questions
- What is CVE-2022-44640?
- CVE-2022-44640 is a critical-severity vulnerability in Heimdal Project, classified under Double Free. CVSS score: 9.8/10. Published 2022-12-25.
- How severe is CVE-2022-44640?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-44640 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.