CVE-2018-20020
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2018-20020
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20020.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2018-20020
- Downstream
- Related
- Published
- 2018-12-19T16:29:00.373Z
- Modified
- 2025-11-14T08:29:46.521612Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
- References
-
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html
- https://usn.ubuntu.com/4547-1/
- https://usn.ubuntu.com/4547-2/
- https://usn.ubuntu.com/4587-1/
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/
- https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
- https://security.gentoo.org/glsa/201908-05
- https://security.gentoo.org/glsa/202006-06
- https://usn.ubuntu.com/3877-1/
- https://www.debian.org/security/2019/dsa-4383
Affected packages
Git / github.com/libvnc/libvncserver
Affected ranges
- Type
- GIT
- Repo
- https://github.com/libvnc/libvncserver
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed