| Package | Affected versions | Patched versions |
|---|---|---|
| kerberos 5 | = 1.13= 1.13.1= 1.13.2= 1.13.3= 1.13.4= 1.13.5= 1.13.6= 1.14= 1.14.1= 1.14.2 |
The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
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