- Fix multiple checksum handling vulnerabilities
(MITKRB5-SA-2010-007, bnc#650650)
CVE-2010-1324
* krb5 GSS-API applications may accept unkeyed checksums
* krb5 application services may accept unkeyed PAC checksums
* krb5 KDC may accept low-entropy KrbFastArmoredReq checksums
CVE-2010-1323
* krb5 clients may accept unkeyed SAM-2 challenge checksums
* krb5 may accept KRB-SAFE checksums with low-entropy derived keys
CVE-2010-4020
* krb5 may accept authdata checksums with low-entropy derived keys
CVE-2010-4021
* krb5 KDC may issue unrequested tickets due to KrbFastReq forgery