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01 Record

CVE-2020-14347

A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could

MediumPUBLISHEDCNA: redhat
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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02 Description

A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.38% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 32.6% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-08-05 13:08Z6 YR AGO
Last updated
2024-08-04 12:39Z2 YR AGO
Reserved
2020-06-17
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Medium (CVSS 5.5)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-665Improper InitializationClass
Data version
5.1
Document digest
a8cffed93bc65d10db4155d366aa648548049fb818ad608cde68ed4b4cb6d93e

05 Affected products

VendorProductVersionsPlatforms
The Xorg Projectxorg-x11-server1.20.9—

06 References

07 Fixed in

AlmaLinux 8

  • libglvnd
    Fixed in 1:1.3.2-1.el8
  • libglvnd-core-devel
    Fixed in 1:1.3.2-1.el8
  • libglvnd-devel
    Fixed in 1:1.3.2-1.el8
  • libglvnd-egl
    Fixed in 1:1.3.2-1.el8
  • libglvnd-gles
    Fixed in 1:1.3.2-1.el8
  • libglvnd-glx
    Fixed in 1:1.3.2-1.el8
  • libglvnd-opengl
    Fixed in 1:1.3.2-1.el8
  • libinput-devel
    Fixed in 1.16.3-1.el8
  • libwacom-devel
    Fixed in 1.6-2.el8
  • mesa-libOSMesa-devel
    Fixed in 20.3.3-2.el8
  • mesa-libgbm-devel
    Fixed in 20.3.3-2.el8
  • xorg-x11-drivers
    Fixed in 7.7-30.el8
  • xorg-x11-server-devel
    Fixed in 1.20.10-1.el8
  • xorg-x11-server-source
    Fixed in 1.20.10-1.el8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Arch Linux

  • xorg-server
    Fixed in 1.20.8-3

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

CloudLinux 8

  • libglvnd
    Fixed in 1:1.3.2-1.el8
  • libglvnd-core-devel
    Fixed in 1:1.3.2-1.el8
  • libglvnd-devel
    Fixed in 1:1.3.2-1.el8
  • libglvnd-egl
    Fixed in 1:1.3.2-1.el8
  • libglvnd-gles
    Fixed in 1:1.3.2-1.el8
  • libglvnd-glx
    Fixed in 1:1.3.2-1.el8
  • libglvnd-opengl
    Fixed in 1:1.3.2-1.el8
  • libinput-devel
    Fixed in 1.16.3-1.el8
  • libwacom-devel
    Fixed in 1.6-2.el8
  • mesa-libOSMesa-devel
    Fixed in 20.3.3-2.el8
  • mesa-libgbm-devel
    Fixed in 20.3.3-2.el8
  • xorg-x11-drivers
    Fixed in 7.7-30.el8
  • xorg-x11-server-devel
    Fixed in 1.20.10-1.el8
  • xorg-x11-server-source
    Fixed in 1.20.10-1.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • xorg-server
    Fixed in 2:1.20.9-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • xorg-server
    Fixed in 2:1.20.9-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • xorg-server
    Fixed in 2:1.20.9-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • xorg-server
    Fixed in 2:1.18.4-0ubuntu0.9
  • xorg-server-hwe-16.04
    Fixed in 2:1.19.6-1ubuntu4.1~16.04.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • xorg-server
    Fixed in 2:1.19.6-1ubuntu4.5
  • xorg-server-hwe-18.04
    Fixed in 2:1.20.8-2ubuntu2.2~18.04.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • xorg-server
    Fixed in 2:1.20.8-2ubuntu2.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • xorg-server
    Fixed in 2:1.15.1-0ubuntu2.11+esm2
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.