CVE-2019-20788
9.8
CRITICAL
CVSS 3.1
EPSS 0.80%
Description
libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer overflow via a large height or width value. NOTE: this may overlap CVE-2019-15690.
How to fix CVE-2019-20788
To remediate CVE-2019-20788, upgrade the affected package to a fixed version below.
- Debian/libvncserver—upgrade to 0.9.12+dfsg-9 or later
Is CVE-2019-20788 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.9.12+dfsg-9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |