Two vulnerabilities have been identified in MIT Kerberos, which could be exploited by remote attackers to take complete control of an affected system or cause a denial of service.
The first issue is due to memory management errors in the "svc_do_xprt()" [lib/rpc/svc.c] function within the administration daemon "kadmind", which could be exploited by remote unauthenticated attackers to execute arbitrary commands or crash a vulnerable application.
The second vulnerability is due to memory management errors in the "mechglue" abstraction interface of the GSS-API implementation and the administration daemon "kadmind" where the "log_badverf()" function calls "gss_display_name()" without checking its return value and without initializing the "gss_buffer_desc" structures passed to "gss_display_name()", which could be exploited by remote unauthenticated attackers to execute arbitrary commands or crash a vulnerable application.
Credits
Vulnerabilities reported by Andrew Korty (Indiana University)
ChangeLog
2007-01-09 : Initial release
Vulnerability Management
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