{"api_version":"1","generated_at":"2026-04-22T21:28:34+00:00","cve":"CVE-2023-0494","urls":{"html":"https://cve.report/CVE-2023-0494","api":"https://cve.report/api/cve/CVE-2023-0494.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-0494","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-0494"},"summary":{"title":"CVE-2023-0494","description":"A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.","state":"PUBLIC","assigner":"secalert@redhat.com","published_at":"2023-03-27 21:15:00","updated_at":"2023-05-30 06:16:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec","name":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec","refsource":"MISC","tags":[],"title":"Xi: fix potential use-after-free in DeepCopyPointerClasses (0ba6d8c3) · Commits · xorg / xserver · GitLab","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/202305-30","name":"GLSA-202305-30","refsource":"GENTOO","tags":[],"title":"X.Org X server, XWayland: Multiple Vulnerabilities (GLSA 202305-30) — Gentoo 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This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions."}]}},"nvd":{"publishedDate":"2023-03-27 21:15:00","lastModifiedDate":"2023-05-30 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