{"id":"CVE-2023-5367","title":"A out-of-bounds write flaw was found in the xorg-x11-server","summary":"A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRCha…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787","CWE-787"],"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","enterprise_linux_desktop = 7.0","enterprise_linux_for_ibm_z_systems = 7.0_s390x","enterprise_linux_for_power_big_endian = 7.0_ppc64","enterprise_linux_for_power_little_endian = 7.0_ppc64le","enterprise_linux_for_scientific_computing = 7.0","enterprise_linux_server = 7.0","enterprise_linux_workstation = 7.0","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-2023-5367","references":[{"url":"https://access.redhat.com/errata/RHSA-2023:6802","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:6808","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7373","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7388","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7405","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7428","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7436","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7526","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7533","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0010","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0128","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2169","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2170","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2995","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2996","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:12751","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2023-5367","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2243091","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-2023:6802","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:6808","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:7373","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:7388","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:7405","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:7428","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:7436","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:7526","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:7533","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0010","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0128","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-2024:2170","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-2024:2996","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/security/cve/CVE-2023-5367","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2243091","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/4YBK3I6SETHETBHDETFWM3VSZUQICIDV/","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/L2RMNR4235YXZZQ2X7Q4MTOZDMZ7BBQU/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEDJN4VFN57K5POOC7BNVD6L6WUUCSG6/","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":0.0062,"epssPercentile":0.48019,"ingestedAt":"2026-06-29T13:24:33.912Z","slug":"CVE-2023-5367","body":"## Overview\n\nA out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service.\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- `enterprise_linux_desktop = 7.0`\n- `enterprise_linux_for_ibm_z_systems = 7.0_s390x`\n- `enterprise_linux_for_power_big_endian = 7.0_ppc64`\n- `enterprise_linux_for_power_little_endian = 7.0_ppc64le`\n- `enterprise_linux_for_scientific_computing = 7.0`\n- `enterprise_linux_server = 7.0`\n- `enterprise_linux_workstation = 7.0`\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":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}