{"id":"CVE-2018-6307","details":"LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.","modified":"2026-07-07T08:50:04.124876204Z","published":"2018-12-19T16:29:00.593Z","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":[{"source":"CPE_STRING","vendor_product":"canonical:ubuntu_linux","cpes":["cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"14.04"},{"last_affected":"14.04"},{"introduced":"16.04"},{"last_affected":"16.04"},{"introduced":"18.04"},{"last_affected":"18.04"},{"introduced":"18.10"},{"last_affected":"18.10"}]},{"cpes":["cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0"},{"last_affected":"8.0"},{"introduced":"9.0"},{"last_affected":"9.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"}]},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"},{"type":"ADVISORY","url":"https://github.com/LibVNC/libvncserver/issues/241"},{"type":"ADVISORY","url":"https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/"},{"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":{"extracted_events":[{"introduced":"0"},{"fixed":"0.9.12"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*"}}],"versions":["LibVNCServer-0.9.11","LibVNCServer-0.9.10","LibVNCServer-0.9.9","LibVNCServer-0.9.8","X11VNC_0_9_12","X11VNC_0_9_11","X11VNC_0_9_10","X11VNC_0_9_9","X11VNC_0_9_8","X11VNC_0_9_7","X11VNC_REL_0_9_6","X11VNC_REL_0_9_5","X11VNC_REL_0_9_4"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-6307.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}