RHEL 7 : Xorg (RHSA-2019:2079)

critical Nessus Plugin ID 127668

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Synopsis

The remote Red Hat host is missing one or more security updates for Xorg.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:2079 advisory.

- libX11: Crash on invalid reply in XListExtensions in ListExt.c (CVE-2018-14598)

- libX11: Off-by-one error in XListExtensions in ListExt.c (CVE-2018-14599)

- libX11: Out of Bounds write in XListExtensions in ListExt.c (CVE-2018-14600)

- libxkbcommon: Endless recursion in xkbcomp/expr.c resulting in a crash (CVE-2018-15853)

- libxkbcommon: NULL pointer dereference resulting in a crash (CVE-2018-15854)

- libxkbcommon: NULL pointer dereference when handling xkb_geometry (CVE-2018-15855)

- libxkbcommon: Infinite loop when reaching EOL unexpectedly resulting in a crash (CVE-2018-15856)

- libxkbcommon: Invalid free in ExprAppendMultiKeysymList resulting in a crash (CVE-2018-15857)

- libxkbcommon: NULL pointer dereference when parsing invalid atoms in ExprResolveLhs resulting in a crash (CVE-2018-15859)

- libxkbcommon: NULL pointer dereference in ExprResolveLhs resulting in a crash (CVE-2018-15861)

- libxkbcommon: NULL pointer dereference in LookupModMask resulting in a crash (CVE-2018-15862)

- libxkbcommon: NULL pointer dereference in ResolveStateAndPredicate resulting in a crash (CVE-2018-15863)

- libxkbcommon: NULL pointer dereference in resolve_keysym resulting in a crash (CVE-2018-15864)

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

Solution

Update the RHEL Xorg package based on the guidance in RHSA-2019:2079.

Plugin Details

Severity: Critical

ID: 127668

File Name: redhat-RHSA-2019-2079.nasl

Version: 1.6

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/12/2019

Updated: 4/28/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2018-14600

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xwayland, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-devel, p-cpe:/a:redhat:enterprise_linux:libx11, p-cpe:/a:redhat:enterprise_linux:gdm-devel, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-common, p-cpe:/a:redhat:enterprise_linux:libx11-common, p-cpe:/a:redhat:enterprise_linux:libxkbcommon-x11-devel, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xnest, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-source, p-cpe:/a:redhat:enterprise_linux:libxkbcommon, p-cpe:/a:redhat:enterprise_linux:xorg-x11-drv-ati, p-cpe:/a:redhat:enterprise_linux:xorg-x11-drv-wacom-devel, p-cpe:/a:redhat:enterprise_linux:xorg-x11-drv-wacom, p-cpe:/a:redhat:enterprise_linux:xorg-x11-drv-vesa, p-cpe:/a:redhat:enterprise_linux:libxkbcommon-x11, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xephyr, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xorg, p-cpe:/a:redhat:enterprise_linux:mesa-libglw, p-cpe:/a:redhat:enterprise_linux:libxkbcommon-devel, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xdmx, p-cpe:/a:redhat:enterprise_linux:gdm, p-cpe:/a:redhat:enterprise_linux:mesa-libglw-devel, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server, p-cpe:/a:redhat:enterprise_linux:gdm-pam-extensions-devel, p-cpe:/a:redhat:enterprise_linux:libx11-devel, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xvfb

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/6/2019

Vulnerability Publication Date: 8/24/2018

Reference Information

CVE: CVE-2018-14598, CVE-2018-14599, CVE-2018-14600, CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856, CVE-2018-15857, CVE-2018-15859, CVE-2018-15861, CVE-2018-15862, CVE-2018-15863, CVE-2018-15864

CWE: 20, 416, 476, 674, 787, 835

RHSA: 2019:2079

Detections

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