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FreeBSD : FreeBSD -- Heap vulnerability in bspatch (7d4f4955-600a-11e6-a6c3-14dae9d210b8)

high Nessus Plugin ID 92928

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Synopsis

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

Description

The implementation of bspatch does not check for a negative value on numbers of bytes read from the diff and extra streams, allowing an attacker who can control the patch file to write at arbitrary locations in the heap.

This issue was first discovered by The Chromium Project and reported independently by Lu Tung-Pin to the FreeBSD project. Impact : An attacker who can control the patch file can cause a crash or run arbitrary code under the credentials of the user who runs bspatch, in many cases, root.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?e69bc7d3

Plugin Details

Severity: High

ID: 92928

File Name: freebsd_pkg_7d4f4955600a11e6a6c314dae9d210b8.nasl

Version: 2.4

Type: local

Published: 8/12/2016

Updated: 1/4/2021

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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: 8/11/2016

Vulnerability Publication Date: 7/25/2016

Reference Information

CVE: CVE-2014-9862

FreeBSD: SA-16:25.bspatch