{"id":"MGASA-2026-0155","summary":"Updated x11-server, x11-server-xwayland & tigervnc packages fix security vulnerabilities","details":"XKB Integer Underflow in XkbSetCompatMap(). (CVE-2026-33999)\nXKB Out-of-bounds Read in CheckSetGeom(). (CVE-2026-34000)\nXSYNC Use-after-free in miSyncTriggerFence(). (CVE-2026-34001)\nXKB Out-of-bounds read in CheckModifierMap(). (CVE-2026-34002)\nXKB Buffer overflow in CheckKeyTypes(). (CVE-2026-34003)\n","modified":"2026-05-26T02:00:04.362535731Z","published":"2026-05-26T01:55:28Z","upstream":["CVE-2026-33999","CVE-2026-34000","CVE-2026-34001","CVE-2026-34002","CVE-2026-34003"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2026-0155.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=35366"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2026/04/14/8"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JGQLR43Z7T6IISLCOC2Q4WB3D4YWB4QS/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RULWKTYNOMHH3NTJ36SDNJVWKXYJ4VVO/"}],"affected":[{"package":{"name":"x11-server","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/x11-server?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.1.8-7.10.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0155.json"}},{"package":{"name":"x11-server-xwayland","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/x11-server-xwayland?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"22.1.9-1.10.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0155.json"}},{"package":{"name":"tigervnc","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/tigervnc?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.1-2.11.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0155.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}