{"id":"CVE-2022-42319","details":"Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) of xenstored.","modified":"2026-03-13T06:00:52.759873Z","published":"2022-11-01T13:15:11.763Z","related":["SUSE-SU-2022:3925-1","SUSE-SU-2022:3928-1","SUSE-SU-2022:3947-1","SUSE-SU-2022:3960-1","SUSE-SU-2022:3971-1","SUSE-SU-2022:4007-1","SUSE-SU-2022:4241-1","SUSE-SU-2022:4332-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2022/11/01/6"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202402-07"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5272"},{"type":"FIX","url":"http://xenbits.xen.org/xsa/advisory-416.html"},{"type":"FIX","url":"https://xenbits.xenproject.org/xsa/advisory-416.txt"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-42319.json","unresolved_ranges":[{"events":[{"introduced":"4.9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"11.0"}]},{"events":[{"introduced":"0"},{"last_affected":"35"}]},{"events":[{"introduced":"0"},{"last_affected":"36"}]},{"events":[{"introduced":"0"},{"last_affected":"37"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}]}