Amazon Linux AMI : krb5 (ALAS-2018-1010)
Medium Nessus Plugin ID 117342
SynopsisThe remote Amazon Linux AMI host is missing a security update.
DescriptionA denial of service flaw was found in MIT Kerberos krb5kdc service. An
authenticated attacker could use this flaw to cause krb5kdc to exit
with an assertion failure by making an invalid S4U2Self or S4U2Proxy
An authentication bypass flaw was found in the way krb5's certauth
interface handled the validation of client certificates. A remote
attacker able to communicate with the KDC could potentially use this
flaw to impersonate arbitrary principals under rare and erroneous
SolutionRun 'yum update krb5' to update your system.