{"id":"CLSA-2026-1784071570","summary":"xorg-x11-server: Fix of 3 CVEs","details":"- CVE-2026-33999: fix integer underflow / buffer re-use in _XkbSetCompatMap() leading to out-of-bounds read (ZDI-CAN-28593)\n- CVE-2026-34001: fix use-after-free in miSyncTriggerFence() leading to server crash and potential memory corruption\n- CVE-2026-34003: add bounds checking in CheckKeyTypes() to prevent out-of-bounds read (ZDI-CAN-28736)","modified":"2026-10-26T09:31:55.411777649Z","published":"2026-07-14T23:26:24Z","upstream":["CVE-2026-33999","CVE-2026-34001","CVE-2026-34003"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1784071570.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33999"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34001"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34003"}],"affected":[{"package":{"name":"xorg-x11-server-Xdmx","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-Xdmx?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}},{"package":{"name":"xorg-x11-server-Xephyr","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-Xephyr?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}},{"package":{"name":"xorg-x11-server-Xnest","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-Xnest?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}},{"package":{"name":"xorg-x11-server-Xorg","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-Xorg?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}},{"package":{"name":"xorg-x11-server-Xvfb","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-Xvfb?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}},{"package":{"name":"xorg-x11-server-Xwayland","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-Xwayland?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}},{"package":{"name":"xorg-x11-server-common","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-common?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}},{"package":{"name":"xorg-x11-server-devel","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-devel?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}},{"package":{"name":"xorg-x11-server-source","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/xorg-x11-server-source?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.4-99.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1784071570.json"}}],"schema_version":"1.9.0"}