CVE-2018-20020
ssvnc - security update
9.8
CRITICAL
CVSS 3.1
EPSS 21.0%
Description
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
How to fix CVE-2018-20020
To remediate CVE-2018-20020, upgrade the affected package to a fixed version below.
- Debian/libvncserver—upgrade to 0.9.11+dfsg-1.2 or later
- Debian/ssvnc—upgrade to 1.0.29-5 or later
- —upgrade to 1.0.29-2+deb8u1 or later
- —upgrade to 4.1.4+repack1-1 or later
Is CVE-2018-20020 being exploited?
Moderate — EPSS is 21.0%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (4)
- from 0, < 0.9.11+dfsg-1.2
- from 0, < 1.0.29-5
- from 0, < 1.0.29-2+deb8u1
- from 0, < 4.1.4+repack1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |