The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client.
2010-10-07T21:00:01.407
2025-04-11T00:51:21.963
Deferred
CVSSv2: 6.5 (MEDIUM)
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.0
6.4
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | mit | kerberos_5 | 1.8 | Yes |
Application | mit | kerberos_5 | 1.8.1 | Yes |
Application | mit | kerberos_5 | 1.8.2 | Yes |
Application | mit | kerberos_5 | 1.8.3 | Yes |