Scientific Linux Security Update : xorg-x11-server on SL7.x i686/x86_64 (2020:5408)

high Nessus Plugin ID 144211

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2020:5408-1 advisory.

- xorg-x11-server: Out-of-bounds access in XkbSetMap function (CVE-2020-14360)

- xorg-x11-server: XkbSetDeviceInfo heap-based buffer overflow privilege escalation vulnerability (CVE-2020-25712)

- xorg-x11-server: Leak of uninitialized heap memory from the X server to clients in AllocatePixmap of dix/pixmap.c (CVE-2020-14347)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://www.scientificlinux.org/category/sl-errata/slsa-20205408-1

Plugin Details

Severity: High

ID: 144211

File Name: sl_20201214_xorg_x11_server_on_SL7_x.nasl

Version: 1.5

Type: local

Agent: unix

Published: 12/15/2020

Updated: 1/27/2021

Supported Sensors: Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

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

CVSS Score Source: CVE-2020-14360

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:fermilab:scientific_linux, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xdmx, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xephyr, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xnest, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xorg, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xvfb, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xwayland, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-common, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-debuginfo, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-devel, p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-source

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 12/14/2020

Vulnerability Publication Date: 8/5/2020

Reference Information

CVE: CVE-2020-14347, CVE-2020-14360, CVE-2020-25712