{"id":"CLSA-2026-1781081364","summary":"tigervnc: Fix of 3 CVEs","details":"- CVE-2026-33999: fix buffer re-use in _XkbSetCompatMap() in the bundled\n  xorg-x11-server source to prevent a buffer read overrun\n- CVE-2026-34001: fix use-after-free in miSyncTriggerFence() in the bundled\n  xorg-x11-server source\n- CVE-2026-34003: add additional bound checking in CheckKeyTypes() in the\n  bundled xorg-x11-server source to prevent an out-of-bounds read","modified":"2026-10-26T09:31:41.307236691Z","published":"2026-06-11T20:05:43Z","upstream":["CVE-2026-33999","CVE-2026-34001","CVE-2026-34003"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos7els/CLSA-2026-1781081364.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":"tigervnc","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/tigervnc?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-33.0.7.el7_9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1781081364.json"}},{"package":{"name":"tigervnc-icons","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/tigervnc-icons?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-33.0.7.el7_9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1781081364.json"}},{"package":{"name":"tigervnc-license","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/tigervnc-license?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-33.0.7.el7_9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1781081364.json"}},{"package":{"name":"tigervnc-server","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/tigervnc-server?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-33.0.7.el7_9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1781081364.json"}},{"package":{"name":"tigervnc-server-applet","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/tigervnc-server-applet?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-33.0.7.el7_9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1781081364.json"}},{"package":{"name":"tigervnc-server-minimal","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/tigervnc-server-minimal?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-33.0.7.el7_9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1781081364.json"}},{"package":{"name":"tigervnc-server-module","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/tigervnc-server-module?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-33.0.7.el7_9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1781081364.json"}}],"schema_version":"1.9.0"}