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.

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.

Security Fix(es):

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

* 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: 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)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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: 1.7

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/12/2019

Updated: 11/6/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Vendor

Vendor Severity: Moderate

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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