{"id":"SUSE-SU-2021:4136-1","summary":"Security update for xorg-x11-server","details":"This update for xorg-x11-server fixes the following issues:\n\n- CVE-2021-4009: The handler for the CreatePointerBarrier request of the XFixes \n  extension does not properly validate the request length leading to out of \n  bounds memory write. (bsc#1190487)\n- CVE-2021-4010: The handler for the Suspend request of the Screen Saver extension\n  does not properly validate the request length leading to out of\n  bounds memory write. (bsc#1190488)\n- CVE-2021-4011: The handlers for the RecordCreateContext and RecordRegisterClients\n  requests of the Record extension do not properly validate the request\n  length leading to out of bounds memory write. (bsc#1190489)\n","modified":"2026-03-11T07:18:25.115696Z","published":"2021-12-21T14:34:23Z","related":["CVE-2021-4009","CVE-2021-4010","CVE-2021-4011"],"upstream":["CVE-2021-4009","CVE-2021-4010","CVE-2021-4011"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2021/suse-su-20214136-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1190487"},{"type":"REPORT","url":"https://bugzilla.suse.com/1190488"},{"type":"REPORT","url":"https://bugzilla.suse.com/1190489"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-4009"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-4010"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-4011"}],"affected":[{"package":{"name":"xorg-x11-server","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 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