Findings

CVE-2021-36222

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 c…

Published Jul 22, 2021 · updated Oct 14, 2026 · mit kerberos 5

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.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 22, 2021 · NIST NVD

    Detected

    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.

  2. Oct 14, 2026 · NIST NVD

    Updated

    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.

Affected

  • cpe debian/debian linux10.0
  • cpe mit/kerberos 5version unspecified
  • cpe netapp/active iq unified managerversion unspecified
  • cpe netapp/oncommand insightversion unspecified
  • cpe netapp/oncommand workflow automationversion unspecified
  • cpe netapp/snapcenterversion unspecified
  • cpe oracle/mysql serverversion unspecified

Sources

  • CVE.orgCVE-2021-36222

    Official CVE identifier

    cve.org
  • NIST NVDCVE-2021-36222

    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

    nvd.nist.gov

References