Threat Level: green Handler on Duty: Xavier Mertens

SANS ISC: KDC DoS in cross-realm referral processing SANS ISC InfoSec Forums

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KDC DoS in cross-realm referral processing

If you are currently using MIT krb5 release krb5-1.7, a null pointer dereference has been reported where an unauthenticated remote attacker could cause the KDC to crash (DoS). This is not a vulnerability in the Kerberos protocol. A patch and a workaround has been made available here.
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Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot org

Guy

471 Posts
ISC Handler
Dec 30th 2009

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