High severity7.8NVD Advisory· Published Mar 30, 2023· Updated Jun 17, 2026
CVE-2023-1393
CVE-2023-1393
Description
A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
51- X.Org Server/X.Org Server Overlay Windowdescription
- osv-coords48 versionspkg:rpm/almalinux/tigervncpkg:rpm/almalinux/tigervnc-iconspkg:rpm/almalinux/tigervnc-licensepkg:rpm/almalinux/tigervnc-selinuxpkg:rpm/almalinux/tigervnc-serverpkg:rpm/almalinux/tigervnc-server-minimalpkg:rpm/almalinux/tigervnc-server-modulepkg:rpm/almalinux/xorg-x11-server-commonpkg:rpm/almalinux/xorg-x11-server-develpkg:rpm/almalinux/xorg-x11-server-sourcepkg:rpm/almalinux/xorg-x11-server-Xdmxpkg:rpm/almalinux/xorg-x11-server-Xephyrpkg:rpm/almalinux/xorg-x11-server-Xnestpkg:rpm/almalinux/xorg-x11-server-Xorgpkg:rpm/almalinux/xorg-x11-server-Xvfbpkg:rpm/almalinux/xorg-x11-server-Xwaylandpkg:rpm/opensuse/xorg-x11-server&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/xorg-x11-server&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/xwayland&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/xwayland&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-ESPOSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP3pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-ESPOSpkg: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%20SP1-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg: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%2015%20SP1pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg: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%20SP4pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Manager%20Proxy%204.2pkg:rpm/suse/xorg-x11-server&distro=SUSE%20Manager%20Server%204.2pkg:rpm/suse/xorg-x11-server&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/xorg-x11-server&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/xwayland&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP4
< 1.12.0-9.el8_7.3+ 47 more
- (no CPE)range: < 1.12.0-9.el8_7.3
- (no CPE)range: < 1.12.0-9.el8_7.3
- (no CPE)range: < 1.12.0-9.el8_7.3
- (no CPE)range: < 1.12.0-9.el8_7.3
- (no CPE)range: < 1.12.0-9.el8_7.3
- (no CPE)range: < 1.12.0-9.el8_7.3
- (no CPE)range: < 1.12.0-9.el8_7.3
- (no CPE)range: < 1.20.11-19.el9
- (no CPE)range: < 1.20.11-19.el9
- (no CPE)range: < 1.20.11-19.el9
- (no CPE)range: < 1.20.11-19.el9
- (no CPE)range: < 1.20.11-19.el9
- (no CPE)range: < 1.20.11-19.el9
- (no CPE)range: < 1.20.11-19.el9
- (no CPE)range: < 1.20.11-19.el9
- (no CPE)range: < 22.1.9-2.el9
- (no CPE)range: < 1.20.3-150400.38.22.1
- (no CPE)range: < 21.1.7-2.1
- (no CPE)range: < 21.1.4-150400.3.15.1
- (no CPE)range: < 23.1.1-1.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150100.14.5.42.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150400.38.22.1
- (no CPE)range: < 1.20.3-150400.38.22.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 7.6_1.18.3-76.66.1
- (no CPE)range: < 1.19.6-4.48.1
- (no CPE)range: < 1.19.6-4.48.1
- (no CPE)range: < 1.19.6-10.49.1
- (no CPE)range: < 1.20.3-150100.14.5.42.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.19.6-4.48.1
- (no CPE)range: < 1.19.6-10.49.1
- (no CPE)range: < 1.20.3-150100.14.5.42.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.19.6-10.49.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.20.3-150200.22.5.72.1
- (no CPE)range: < 1.19.6-4.48.1
- (no CPE)range: < 1.19.6-4.48.1
- (no CPE)range: < 21.1.4-150400.3.15.1
Patches
Vulnerability mechanics
References
11- gitlab.freedesktop.org/xorg/xserver/-/commit/26ef545b3502f61ca722a7a3373507e88ef64110nvdPatch
- security.gentoo.org/glsa/202305-30nvdThird Party Advisory
- www.openwall.com/lists/oss-security/2023/03/29/1nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPNQYHUI63DB5FHK6EOI3Z4C6YQZGZKI/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H3EVO3OQV6T4BSABWZ2TU3PY5TJTEQZ2/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MEHSYYFGBN3G4RS2HJXKQ5NBMOAZ5F2F/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NOYATGGPMT3COC7ELAJW5TG2PVS3AFR2/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSAAGI5V77FQXIT5PP4URP6BYQVCK5U5/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHJMSMK7G4GPLMKIGKXIOL2RTKU5VFWE/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SW2NRC3V53PIBXFPFBVWCOM2MDDILWQS/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SWFUDSBSABRHQOX6TIQ5O3SNPFTPFQQP/nvd
News mentions
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