| Package | Affected versions | Patched versions |
|---|---|---|
| kerberos 5 | = 1.12= 1.12.1= 1.12.2= 1.12.3= 1.13= 1.13.1 |
The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.
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