CVE-2020-14347

Summary

CVECVE-2020-14347
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-08-05 14:15:00 UTC
Updated2023-11-07 03:17:00 UTC
DescriptionA 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 result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.

Risk And Classification

Problem Types: CWE-665

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 20.04 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application X.org Xorg-server All All All All
Application X.org Xorg-server All All All All

References

ReferenceSourceLinkTags
USN-4488-2: X.Org X Server vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
[security-announce] openSUSE-SU-2020:1279-1: important: Security update SUSE lists.opensuse.org
X.Org security advisory: July 31, 2020: Xserver MISC lists.x.org Mailing List, Patch, Vendor Advisory
[SECURITY] [DLA 2359-1] xorg-server security update MLIST lists.debian.org
USN-4488-1: X.Org X Server vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
1862258 – (CVE-2020-14347) CVE-2020-14347 xorg-x11-server: leak of uninitialized heap memory from the X server to clients in AllocatePixmap of dix/pixmap.c CONFIRM bugzilla.redhat.com Issue Tracking, Third Party Advisory
Debian -- Security Information -- DSA-4758-1 xorg-server DEBIAN www.debian.org
[security-announce] openSUSE-SU-2020:1302-1: important: Security update SUSE lists.opensuse.org
X.Org X Server: Multiple vulnerabilities (GLSA 202012-01) — Gentoo security GENTOO security.gentoo.org
oss-security - Fwd: X.Org security advisory: July 31, 2020: Xserver MISC www.openwall.com Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159217 Oracle Enterprise Linux Security Update for userspace graphics, xorg-x11, and mesa (ELSA-2021-1804)
  • 239300 Red Hat Update for userspace graphics, xorg-x11, and mesa (RHSA-2021:1804)
  • 377052 Alibaba Cloud Linux Security Update for xorg-x11-server (ALINUX2-SA-2020:0192)
  • 377380 Alibaba Cloud Linux Security Update for userspace graphics, xorg-x11, and mesa (ALINUX3-SA-2022:0087)
  • 377568 Alibaba Cloud Linux Security Update for userspace graphics, xorg-x11, and mesa (ALINUX3-SA-2022:0114)
  • 500825 Alpine Linux Security Update for xorg-server
  • 690478 Free Berkeley Software Distribution (FreeBSD) Security Update for xorg-server (3c7ba82a-d3fb-11ea-9aba-0c9d925bbbc0)
  • 730228 McAfee Web Gateway Multiple Vulnerabilities (WP-3445, WP-3483, WP-3527, WP-3528, WP-3547, WP-3584,WP-3589,WP-3611)
  • 940098 AlmaLinux Security Update for userspace (ALSA-2021:1804)
  • 960449 Rocky Linux Security Update for userspace (RLSA-2021:1804)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report