{"id":"CVE-2018-20020","details":"LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution","modified":"2026-03-20T11:24:25.042396Z","published":"2018-12-19T16:29:00.373Z","related":["MGASA-2019-0037","MGASA-2020-0435","SUSE-SU-2019:0060-1","SUSE-SU-2019:0060-2","SUSE-SU-2019:0080-1","SUSE-SU-2019:13927-1","openSUSE-SU-2019:0053-1","openSUSE-SU-2024:10598-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/4547-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/4547-2/"},{"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/msg00033.html"},{"type":"WEB","url":"https://usn.ubuntu.com/4587-1/"},{"type":"ADVISORY","url":"https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201908-05"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202006-06"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3877-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4383"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libvnc/libvncserver","events":[{"introduced":"0"},{"fixed":"0a70095271d845d16a3ed17354841b01f33963ad"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"0.9.12"}]}}],"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":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.10"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20020.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"}]}