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FreeBSD : FreeBSD -- Lost mbuf flag resulting in data corruption (7a09a8df-ca41-11df-aade-0050568f000c)

high Nessus Plugin ID 50334

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Synopsis

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

Description

The read-only flag is not correctly copied when a mbuf buffer reference is duplicated. When the sendfile(2) system call is used to transmit data over the loopback interface, this can result in the backing pages for the transmitted file being modified, causing data corruption.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?fd4f8356

Plugin Details

Severity: High

ID: 50334

File Name: freebsd_pkg_7a09a8dfca4111dfaade0050568f000c.nasl

Version: 1.11

Type: local

Published: 10/26/2010

Updated: 1/6/2021

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Vulnerability Information

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

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

Patch Publication Date: 10/24/2010

Vulnerability Publication Date: 7/13/2010

Reference Information

FreeBSD: SA-10:07.mbuf