RHEL 7 : xorg-x11-server (RHSA-2018:3410)

Medium Nessus Plugin ID 118557

Synopsis

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

Description

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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) :

* xorg-x11-server: Incorrect permission check in Xorg X server allows for privilege escalation (CVE-2018-14665)

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

Red Hat would like to thank Narendra Shinde for reporting this issue.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2018:3410

https://access.redhat.com/security/cve/cve-2018-14665

Plugin Details

Severity: Medium

ID: 118557

File Name: redhat-RHSA-2018-3410.nasl

Version: 1.5

Type: local

Agent: unix

Published: 2018/10/31

Modified: 2018/11/26

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

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

CVSS v3.0

Base Score: 6.6

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-Xdmx, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-Xephyr, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-Xnest, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-Xorg, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-Xvfb, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-Xwayland, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-common, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-debuginfo, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-devel, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-source, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.6

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/10/30

Exploitable With

Metasploit (Xorg X11 Server SUID privilege escalation)

Reference Information

CVE: CVE-2018-14665

RHSA: 2018:3410

IAVB: 2018-B-0140