{"id":"CVE-2023-5380","title":"A use-after-free flaw was found in the xorg-x11-server","summary":"A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped fro…","severity":"medium","cvss":4.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-416","CWE-416"],"vendor":"x.org","product":"x_server","affected":["x_server < 21.1.9","xwayland < 23.2.2","enterprise_linux = 7.0","enterprise_linux = 8.0","enterprise_linux = 9.0","fedora = 37","fedora = 38","fedora = 39","debian_linux = 11.0","debian_linux = 12.0"],"patched":["x_server 21.1.9","xwayland 23.2.2"],"published":"2023-10-25","updated":"2026-06-23","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-5380","references":[{"url":"https://access.redhat.com/errata/RHSA-2023:7428","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2169","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2298","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2995","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:3067","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2023-5380","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2244736","label":"secalert@redhat.com"},{"url":"https://lists.x.org/archives/xorg-announce/2023-October/003430.html","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7428","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:2169","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:2298","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:2995","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:3067","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/security/cve/CVE-2023-5380","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2244736","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00036.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2WS5E7H4A5J3U5YBCTMRPQVGWK5LVH7D/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3RK66CXMXO3PCPDU3GDY5FK4UYHUXQJT/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AKKIE626TZOOPD533EYN47J4RFNHZVOP/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HO2Q2NP6R62ZRQQG3XQ4AXUT7J2EKKKY/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SN6KV4XGQJRVAOSM5C3CWMVAXO53COIP/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJXNI4BXURC2BKPNAHFJK3C5ZETB7PER/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.x.org/archives/xorg-announce/2023-October/003430.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202401-30","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20231130-0004/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5534","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00715,"epssPercentile":0.51863,"ingestedAt":"2026-06-29T13:24:33.915Z","slug":"CVE-2023-5380","body":"## Overview\n\nA use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped from within a window on one screen to the root window of the other screen and if the original window is destroyed followed by another window being destroyed.\n\n## Affected\n\n- `x_server < 21.1.9`\n- `xwayland < 23.2.2`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `fedora = 37`\n- `fedora = 38`\n- `fedora = 39`\n- `debian_linux = 11.0`\n- `debian_linux = 12.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `x_server 21.1.9`\n- `xwayland 23.2.2`","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":25.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}