{"id":"RLSA-2025:9306","summary":"Important: tigervnc security update","details":"Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients.\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":"2026-03-11T06:40:59.616750Z","published":"2025-10-04T00:11:30.916420Z","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-2025:9306"},{"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":"tigervnc","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/tigervnc?distro=rocky-linux-9-6&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.14.1-8.el9_6"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2025:9306.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"}]}