{"id":"CVE-2018-7225","details":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","modified":"2026-04-16T06:15:17.239123346Z","published":"2018-02-19T15:29:00.253Z","related":["SUSE-SU-2018:0830-1","SUSE-SU-2018:0875-1","openSUSE-SU-2024:10598-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/4573-1/"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html"},{"type":"WEB","url":"https://usn.ubuntu.com/4547-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/4587-1/"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201908-05"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4221"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/103107"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/03/msg00035.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3618-1/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1055"},{"type":"ADVISORY","url":"https://github.com/LibVNC/libvncserver/issues/218"},{"type":"EVIDENCE","url":"http://www.openwall.com/lists/oss-security/2018/02/18/1"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libvnc/libvncserver","events":[{"introduced":"0"},{"last_affected":"8415ff4c3517c6697d53e1a17bba35284f480891"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"0.9.11"}]}}],"versions":["LibVNCServer-0.9.10","LibVNCServer-0.9.11","LibVNCServer-0.9.8","LibVNCServer-0.9.9","X11VNC_0_9_10","X11VNC_0_9_11","X11VNC_0_9_12","X11VNC_0_9_7","X11VNC_0_9_8","X11VNC_0_9_9","X11VNC_REL_0_9_4","X11VNC_REL_0_9_5","X11VNC_REL_0_9_6"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"17.10"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.6"}]},{"events":[{"introduced":"0"},{"last_affected":"7.5"}]},{"events":[{"introduced":"0"},{"last_affected":"7.6"}]},{"events":[{"introduced":"0"},{"last_affected":"7.6"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-7225.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}