CVE-2020-14405

moderate-risk
Published 2020-06-17

An issue was discovered in LibVNCServer before 0.9.13. libvncclient/rfbproto.c does not limit TextChat size.

Do I need to act?

~
1.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (14)

Affected Vendors

Debian Siemens Canonical Libvnc Project

References (12)

Patch https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
Patch https://github.com/LibVNC/libvncserver/commit/8937203441ee241c4ace85da687b7d6633...
Release Notes https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServe...
Mailing List https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html
Mailing List https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html
Third Party Advisory https://usn.ubuntu.com/4434-1/
Patch https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
Patch https://github.com/LibVNC/libvncserver/commit/8937203441ee241c4ace85da687b7d6633...
Release Notes https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServe...
Mailing List https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html
Mailing List https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html
Third Party Advisory https://usn.ubuntu.com/4434-1/
46
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 4/34 · Minimal
Exposure 18/34 · Moderate