FreeBSD : FreeBSD -- Network ACL mishandling in mountd(8) (87261557-a450-11e2-9898-001060e06fd4)

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

While parsing the exports(5) table, a network mask in the form of
'-network=netname/prefixlength' results in an incorrect network mask
being computed if the prefix length is not a multiple of 8.

For example, specifying the ACL for an export as '-network
192.0.2.0/23' would result in a netmask of 255.255.127.0 being used
instead of the correct netmask of 255.255.254.0.

See also :

http://www.nessus.org/u?6c1885d7

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N)
CVSS Temporal Score : 3.2
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 65969 ()

Bugtraq ID: 47517

CVE ID: CVE-2011-1739

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