Multiple vulnerabilities have been identified in Kerberos, which could be exploited by attackers to gain knowledge of sensitive information, cause a denial of service or take complete control of an affected system.
The first issue is caused by errors in KDC when handling krb4 messages, which could be exploited by an unauthenticated remote attacker to cause a krb4-enabled KDC to crash, disclose sensitive information, or execute arbitrary code.
The second vulnerability is caused by an error in KDC when handling incoming krb4 messages, which could be exploited by unauthenticated remote attackers to cause a krb4-enabled KDC to expose sensitive stack memory data (e.g. secret key data on certain platforms).
The third issue is caused by memory corruption errors in the RPC library when multiple file descriptors are opened, which could result in database corruption or arbitrary code execution.
Credits
Vulnerabilities reported by the vendor, Jeff Altman (Secure Endpoints) and Red Hat Security Response Team.
ChangeLog
2008-03-19 : Initial release
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