{"schemaVersion":3,"id":"USN-6587-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"xorg-server, xwayland vulnerabilities\n\nJan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\nmemory when processing the DeviceFocusEvent and ProcXIQueryPointer APIs. An\nattacker could possibly use this issue to cause the X Server to crash,\nobtain sensitive information, or execute arbitrary code. (CVE-2023-6816)\n\nJan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\nreattaching to a different master device. An attacker could use this issue\nto cause the X Server to crash, leading to a denial of service, or possibly\nexecute arbitrary code. (CVE-2024-0229)\n\nOlivier Fourdan and Donn Seeley discovered that the X.Org X Server\nincorrectly labeled GLX PBuffers when used with SELinux. An attacker could\nuse this issue to cause the X Server to crash, leading to a denial of\nservice. (CVE-2024-0408)\n\nOlivier Fourdan discovered that the X.Org X Server incorrectly handled\nthe curser code when used with SELinux. An attacker could use this issue to\ncause the X Server to crash, leading to a denial of service.\n(CVE-2024-0409)\n\nJan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\nmemory when processing the XISendDeviceHierarchyEvent API. An attacker\ncould possibly use this issue to cause the X Server to crash, or execute\narbitrary code. (CVE-2024-21885)\n\nJan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\ndevices being disabled. An attacker could possibly use this issue to cause\nthe X Server to crash, or execute arbitrary code. (CVE-2024-21886)","dates":{"published":"2024-01-16T15:20:09.000Z","modified":"2026-04-27T17:02:51.525Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"xorg-server","name":"xorg-server","label":"xorg-server","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/xorg-server","purlType":"deb","versions":[{"text":"< 2:1.20.13-1ubuntu1~20.04.14","noFixRecorded":false,"fixedIn":null},{"text":"< 2:21.1.4-2ubuntu1.7~22.04.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2:1.20.13-1ubuntu1~20.04.14 | < 2:21.1.4-2ubuntu1.7~22.04.7","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"xwayland","name":"xwayland","label":"xwayland","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/xwayland","purlType":"deb","versions":[{"text":"< 2:22.1.1-1ubuntu0.10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2:22.1.1-1ubuntu0.10","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6587-1","label":"ubuntu.com/security/notices/USN-6587-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-6816","label":"ubuntu.com/security/CVE-2023-6816","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-0229","label":"ubuntu.com/security/CVE-2024-0229","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-0408","label":"ubuntu.com/security/CVE-2024-0408","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-0409","label":"ubuntu.com/security/CVE-2024-0409","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-21885","label":"ubuntu.com/security/CVE-2024-21885","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-21886","label":"ubuntu.com/security/CVE-2024-21886","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-6816","CVE-2024-0229","CVE-2024-0408","CVE-2024-0409","CVE-2024-21885","CVE-2024-21886"],"downstream":[],"duplicates":[],"related":["CVE-2023-6816","CVE-2024-0229","CVE-2024-0408","CVE-2024-0409","CVE-2024-21885","CVE-2024-21886"]},"timeline":[{"kind":"published","date":"2024-01-16T15:20:09.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T17:02:51.525Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T16:57:08.853Z","stale":false,"partial":false}}