{"id":"CVE-2018-20019","details":"LibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f contains multiple heap out-of-bound write vulnerabilities in VNC client code that can result remote code execution","modified":"2026-04-16T01:44:01.584668485Z","published":"2018-12-19T16:29:00.343Z","related":["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"],"database_specific":{"unresolved_ranges":[{"cpe":"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"14.04"}]},{"cpe":"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"16.04"}]},{"cpe":"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"16.04"}]},{"cpe":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"18.04"}]},{"extracted_events":[{"last_affected":"18.10"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"},{"cpe":"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"8.0"}]},{"cpe":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"9.0"}]},{"cpe":"cpe:2.3:o:siemens:simatic_itc1500_firmware:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"3.0.0.0"},{"fixed":"3.2.1.0"}]},{"cpe":"cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"3.0.0.0"},{"fixed":"3.2.1.0"}]},{"cpe":"cpe:2.3:o:siemens:simatic_itc1900_firmware:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"3.0.0.0"},{"fixed":"3.2.1.0"}]},{"cpe":"cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"3.0.0.0"},{"fixed":"3.2.1.0"}]},{"extracted_events":[{"introduced":"3.0.0.0"},{"fixed":"3.2.1.0"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:siemens:simatic_itc2200_firmware:*:*:*:*:*:*:*:*"},{"cpe":"cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"3.0.0.0"},{"fixed":"3.2.1.0"}]}]},"references":[{"type":"ADVISORY","url":"https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-029-libvnc-multiple-heap-out-of-bound-vulnerabilities/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201908-05"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3877-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4547-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4587-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4383"},{"type":"FIX","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libvnc/libvncserver","events":[{"introduced":"0"},{"fixed":"0a70095271d845d16a3ed17354841b01f33963ad"}],"database_specific":{"cpe":"cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"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":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20019.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}