ALPINE-CVE-2021-36222

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2021-36222
Published: 22 Jul 2021, 18:15
Last modified:03 Dec 2025, 22:48

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Jul 2021, 18:15
Published
Vulnerability first disclosed
03 Dec 2025, 22:48
Last Modified
Vulnerability information updated

Description

ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • alpine•krb5

    < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0 | < 1.18.4-r0

References (1)