FreeBSD : FreeBSD -- Speculative Execution Vulnerabilities (74daa370-2797-11e8-95ec-a4badb2f4699) (Meltdown) (Spectre)

medium Nessus Plugin ID 108352

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

A number of issues relating to speculative execution were found last year and publicly announced January 3rd. Two of these, known as Meltdown and Spectre V2, are addressed here.

CVE-2017-5754 (Meltdown) - ------------------------

This issue relies on an affected CPU speculatively executing instructions beyond a faulting instruction. When this happens, changes to architectural state are not committed, but observable changes may be left in micro- architectural state (for example, cache). This may be used to infer privileged data.

CVE-2017-5715 (Spectre V2) - --------------------------

Spectre V2 uses branch target injection to speculatively execute kernel code at an address under the control of an attacker. Impact :
An attacker may be able to read secret data from the kernel or from a process when executing untrusted code (for example, in a web browser).

Solution

Update the affected package.

See Also

http://www.nessus.org/u?e73fffc9

Plugin Details

Severity: Medium

ID: 108352

File Name: freebsd_pkg_74daa370279711e895eca4badb2f4699.nasl

Version: 1.5

Type: local

Published: 3/15/2018

Updated: 4/5/2019

Dependencies: ssh_get_info.nasl

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: AV:L/AC:M/Au:N/C:C/I:N/A:N

Temporal Vector: E:H/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 5.4

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

Temporal Vector: E:H/RL:O/RC:C

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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/14/2018

Vulnerability Publication Date: 3/14/2018

Reference Information

CVE: CVE-2017-5715, CVE-2017-5754

FreeBSD: SA-18:03.speculative_execution

IAVA: 2018-A-0019, 2018-A-0020