CVE-2022-44640
CRITICALCVSS 9.8/10EPSS 1.84%
Last modified
CVE-2022-44640 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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).. EPSS estimates a 1.84% chance of exploitation in the next 30 days.
Description
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Heimdal Project | Heimdal | < 7.7.1 |
| Samba | Samba | >= 4.15.0, < 4.15.3 |
| Samba | Samba | >= 4.16.0, < 4.16.8 |
| Samba | Samba | >= 4.17.0, < 4.17.4 |
References
- https://github.com/heimdal/heimdal/security/advisories/GHSA-88pm-hfmq-7vv4Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0008/Third Party Advisory
- https://github.com/heimdal/heimdal/security/advisories/GHSA-88pm-hfmq-7vv4Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0008/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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).
How severe is CVE-2022-44640?
CVE-2022-44640 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.
How do I fix CVE-2022-44640?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2022-44640?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST