{"id":"CLSA-2026-1778003374","summary":"tigervnc: Fix of 3 CVEs","details":"- CVE-2026-33999: fix buffer re-use in xkb _XkbSetCompatMap that miscounted\n  valid entries and could cause buffer overflow on subsequent SetCompatMap\n  requests (bundled xorg-server)\n- CVE-2026-34001: fix use-after-free in miext/sync miSyncTriggerFence by\n  retaining a ref on the SyncFence across the trigger callback\n  (bundled xorg-server)\n- CVE-2026-34003: add bound checking in xkb CheckKeyTypes() to prevent\n  reading past the request data on a crafted SetMap request\n  (bundled xorg-server)","modified":"2026-06-01T00:32:51.490587801Z","published":"2026-05-05T17:49:38Z","upstream":["CVE-2026-33999","CVE-2026-34001","CVE-2026-34003"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1778003374.html"}],"affected":[{"package":{"name":"tigervnc","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/tigervnc?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.1-9.el9_6.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1778003374.json"}},{"package":{"name":"tigervnc-icons","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/tigervnc-icons?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.1-9.el9_6.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1778003374.json"}},{"package":{"name":"tigervnc-license","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/tigervnc-license?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.1-9.el9_6.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1778003374.json"}},{"package":{"name":"tigervnc-selinux","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/tigervnc-selinux?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.1-9.el9_6.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1778003374.json"}},{"package":{"name":"tigervnc-server","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/tigervnc-server?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.1-9.el9_6.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1778003374.json"}},{"package":{"name":"tigervnc-server-minimal","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/tigervnc-server-minimal?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.1-9.el9_6.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1778003374.json"}},{"package":{"name":"tigervnc-server-module","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/tigervnc-server-module?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.1-9.el9_6.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1778003374.json"}}],"schema_version":"1.7.5"}