FreeBSD : drm graphics drivers -- potential information disclusure via local access (d2c2c815-3793-11ea-8be3-54e1ad3d6335)

medium Nessus Plugin ID 132943

Language:

New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

Intel reports :

.A potential security vulnerability in Intel(R) Processor Graphics may allow information disclosure. Intel is releasing software updates to mitigate this potential vulnerability.

Description: Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may allow an unauthenticated user to potentially enable information disclosure via local access.

This patch provides mitigation for Gen9 hardware only. Patches for Gen7 and Gen7.5 will be provided later. Note that Gen8 is not impacted due to a previously implemented workaround. The mitigation involves using an existing hardware feature to forcibly clear down all EU state at each context switch.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?0057a26c

http://www.nessus.org/u?4290df62

Plugin Details

Severity: Medium

ID: 132943

File Name: freebsd_pkg_d2c2c815379311ea8be354e1ad3d6335.nasl

Version: 1.4

Type: local

Published: 1/16/2020

Updated: 2/19/2020

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2019-14615

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.4

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

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

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:drm-current-kmod, p-cpe:/a:freebsd:freebsd:drm-devel-kmod, p-cpe:/a:freebsd:freebsd:drm-fbsd11.2-kmod, p-cpe:/a:freebsd:freebsd:drm-fbsd12.0-kmod, cpe:/o:freebsd:freebsd

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/15/2020

Vulnerability Publication Date: 1/14/2020

Reference Information

CVE: CVE-2019-14615