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

medium Nessus Plugin ID 65969

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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.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?78b6a933

Plugin Details

Severity: Medium

ID: 65969

File Name: freebsd_pkg_87261557a45011e29898001060e06fd4.nasl

Version: 1.8

Type: local

Published: 4/14/2013

Updated: 1/6/2021

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.7

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:freebsd, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 1/29/2012

Vulnerability Publication Date: 4/20/2011

Reference Information

CVE: CVE-2011-1739

BID: 47517

FreeBSD: SA-11:01.mountd