High severity7.8NVD Advisory· Published Sep 15, 2020· Updated Jun 17, 2026
CVE-2020-14346
CVE-2020-14346
Description
A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
47- xorg/xorg-x11-serverdescription
- Range: <1.20.9
- osv-coords45 versionspkg:rpm/almalinux/libglvndpkg:rpm/almalinux/libglvnd-core-develpkg:rpm/almalinux/libglvnd-develpkg:rpm/almalinux/libglvnd-eglpkg:rpm/almalinux/libglvnd-glespkg:rpm/almalinux/libglvnd-glxpkg:rpm/almalinux/libglvnd-openglpkg:rpm/almalinux/libinput-develpkg:rpm/almalinux/libwacom-develpkg:rpm/almalinux/mesa-libgbm-develpkg:rpm/almalinux/mesa-libOSMesa-develpkg:rpm/almalinux/xorg-x11-driverspkg:rpm/almalinux/xorg-x11-server-develpkg:rpm/almalinux/xorg-x11-server-sourcepkg:rpm/opensuse/xorg-x11-server&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/xorg-x11-server&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/xorg-x11-server&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xorg-x11-server&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP1pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2pkg:rpm/suse/xorg-x11-server&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/xorg-x11-server&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/xorg-x11-server&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/xorg-x11-server&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/xorg-x11-server&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 1:1.3.2-1.el8+ 44 more
- (no CPE)range: < 1:1.3.2-1.el8
- (no CPE)range: < 1:1.3.2-1.el8
- (no CPE)range: < 1:1.3.2-1.el8
- (no CPE)range: < 1:1.3.2-1.el8
- (no CPE)range: < 1:1.3.2-1.el8
- (no CPE)range: < 1:1.3.2-1.el8
- (no CPE)range: < 1:1.3.2-1.el8
- (no CPE)range: < 1.16.3-1.el8
- (no CPE)range: < 1.6-2.el8
- (no CPE)range: < 20.3.3-2.el8
- (no CPE)range: < 20.3.3-2.el8
- (no CPE)range: < 7.7-30.el8
- (no CPE)range: < 1.20.10-1.el8
- (no CPE)range: < 1.20.10-1.el8
- (no CPE)range: < 1.20.3-lp151.4.3.1
- (no CPE)range: < 1.20.3-lp152.8.3.1
- (no CPE)range: < 1.20.13-1.2
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 1.19.6-8.16.1
- (no CPE)range: < 1.19.6-8.16.1
- (no CPE)range: < 1.20.3-14.5.1
- (no CPE)range: < 1.20.3-22.5.1
- (no CPE)range: < 1.20.3-14.5.1
- (no CPE)range: < 1.20.3-22.5.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 1.19.6-4.8.1
- (no CPE)range: < 1.19.6-10.8.1
- (no CPE)range: < 1.19.6-8.16.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 1.19.6-4.8.1
- (no CPE)range: < 1.19.6-10.8.1
- (no CPE)range: < 1.19.6-8.16.1
- (no CPE)range: < 1.19.6-10.8.1
- (no CPE)range: < 1.20.3-14.5.1
- (no CPE)range: < 1.20.3-22.5.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 1.19.6-4.8.1
- (no CPE)range: < 7.6_1.18.3-76.26.1
- (no CPE)range: < 1.19.6-4.8.1
Patches
Vulnerability mechanics
References
5- lists.x.org/archives/xorg-announce/2020-August/003058.htmlnvdMailing ListPatchVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- security.gentoo.org/glsa/202012-01nvdThird Party Advisory
- usn.ubuntu.com/4488-2/nvdThird Party Advisory
- www.zerodayinitiative.com/advisories/ZDI-20-1417/nvdThird Party AdvisoryVDB Entry
News mentions
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