{"id":"RLSA-2025:9305","summary":"Important: xorg-x11-server and xorg-x11-server-Xwayland security update","details":"X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.\n\nSecurity Fix(es):\n\n* xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors (CVE-2025-49175)\n\n* xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension (CVE-2025-49176)\n\n* xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Unprocessed Client Request Due to Bytes to Ignore (CVE-2025-49178)\n\n* xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer overflow in X Record extension (CVE-2025-49179)\n\n* xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in X Resize, Rotate and Reflect (RandR) Extension (CVE-2025-49180)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-03-11T06:38:40.400674Z","published":"2025-07-29T13:38:41.630147Z","upstream":["CVE-2025-49175","CVE-2025-49176","CVE-2025-49178","CVE-2025-49179","CVE-2025-49180"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2025:9305"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2369947"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2369954"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2369977"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2369978"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2369981"}],"affected":[{"package":{"name":"xorg-x11-server","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/xorg-x11-server?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.20.11-26.el8_10"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2025:9305.json"}},{"package":{"name":"xorg-x11-server-Xwayland","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/xorg-x11-server-Xwayland?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:21.1.3-18.el8_10"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2025:9305.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}