Mandriva Linux Security Advisory : krb5 (MDVSA-2010:245)
Low Nessus Plugin ID 50848
SynopsisThe remote Mandriva Linux host is missing one or more security updates.
DescriptionA vulnerability was discovered and corrected in krb5 :
An unauthenticated remote attacker could alter a SAM-2 challenge, affecting the prompt text seen by the user or the kind of response sent to the KDC. Under some circumstances, this can negate the incremental security benefit of using a single-use authentication mechanism token. An unauthenticated remote attacker has a 1/256 chance of forging KRB-SAFE messages in an application protocol if the targeted pre-existing session uses an RC4 session key. Few application protocols use KRB-SAFE messages (CVE-2010-1323).
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The updated packages have been patched to correct this issue.
SolutionUpdate the affected packages.