Detections
Analytics
RHEL 7 : xorg-x11-server (RHSA-2020:5408)
high Nessus Plugin ID 144203
Language:
Synopsis
The remote Red Hat host is missing one or more security updates for xorg-x11-server.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5408 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):
* 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)
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.
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-x11-server package based on the guidance in RHSA-2020:5408.See Also
http://www.nessus.org/u?0ed461ec
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/errata/RHSA-2020:5408
https://bugzilla.redhat.com/show_bug.cgi?id=1862258
Plugin Details
Severity: High
ID: 144203
File Name: redhat-RHSA-2020-5408.nasl
Version: 1.14
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 12/14/2020
Updated: 11/7/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 4.5
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A: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: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2020-25712
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xorg, 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:xorg-x11-server-xnest, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-source, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xdmx, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-common, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xvfb, p-cpe:/a:redhat:enterprise_linux:xorg-x11-server-xephyr
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: 12/14/2020
Vulnerability Publication Date: 8/5/2020