{"id":"RLSA-2025:20958","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: xmayland: Use-after-free in XPresentNotify structure creation (CVE-2025-62229)\n\n* xorg: xwayland: Use-after-free in Xkb client resource removal (CVE-2025-62230)\n\n* xorg: xmayland: Value overflow in XkbSetCompatMap() (CVE-2025-62231)\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":"2026-03-11T06:34:34.864993Z","published":"2025-11-21T18:13:51.682496Z","upstream":["CVE-2025-62229","CVE-2025-62230","CVE-2025-62231"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2025:20958"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2402649"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2402653"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2402660"}],"affected":[{"package":{"name":"tigervnc","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/tigervnc?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.15.0-6.el9_7"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2025:20958.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:L/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}