CVE-2019-20839
libvncserver - security update
7.5
HIGH
CVSS 3.1
EPSS 4.1%
Description
libvncclient/sockets.c in LibVNCServer before 0.9.13 has a buffer overflow via a long socket filename.
How to fix CVE-2019-20839
To remediate CVE-2019-20839, upgrade the affected package to a fixed version below.
- Debian/libvncserver—upgrade to 0.9.13+dfsg-1 or later
- Debian/libvncserver—upgrade to 0.9.9+dfsg2-6.1+deb8u8 or later
- —upgrade to 0.9.11+dfsg-1.3~deb9u5 or later
Is CVE-2019-20839 being exploited?
Low — EPSS is 4.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.9.13+dfsg-1
- from 0, < 0.9.9+dfsg2-6.1+deb8u8
- from 0, < 0.9.11+dfsg-1.3~deb9u5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |