| Package | Affected versions | Patched versions |
|---|---|---|
| kerberos 5 | = 1.10= 1.10.1= 1.10.2= 1.8= 1.8.1= 1.8.2= 1.8.3= 1.8.4= 1.8.5= 1.8.6= 1.9.4 |
The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.
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