CVE-2018-20019

high-risk
Published 2018-12-19

LibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f contains multiple heap out-of-bound write vulnerabilities in VNC client code that can result remote code execution

Do I need to act?

!
16.8% chance of exploitation in next 30 days
EPSS score — higher than 83% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (14)

Affected Vendors

Debian Siemens Canonical Libvnc Project

References (18)

Patch https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
Broken Link https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18...
Mailing List https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
Mailing List https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
Third Party Advisory https://security.gentoo.org/glsa/201908-05
Third Party Advisory https://usn.ubuntu.com/3877-1/
Third Party Advisory https://usn.ubuntu.com/4547-1/
Third Party Advisory https://usn.ubuntu.com/4587-1/
Third Party Advisory https://www.debian.org/security/2019/dsa-4383
Patch https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
Broken Link https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18...
Mailing List https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
Mailing List https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
Third Party Advisory https://security.gentoo.org/glsa/201908-05
Third Party Advisory https://usn.ubuntu.com/3877-1/
Third Party Advisory https://usn.ubuntu.com/4547-1/
Third Party Advisory https://usn.ubuntu.com/4587-1/
Third Party Advisory https://www.debian.org/security/2019/dsa-4383
63
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 13/34 · Low
Exposure 18/34 · Moderate