CVE-2011-1739: Input Validation

First published: Tue May 03 2011(Updated: )

The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.

Credit: secteam@freebsd.org

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