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CVE-2020-14405

Published: 17 June 2020

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

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
veyon
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
impish Ignored
(end of life)
bionic Does not exist

eoan Ignored
(end of life)
focal Needs triage

jammy Needs triage

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
x11vnc
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
impish Ignored
(end of life)
bionic Needs triage

eoan Ignored
(end of life)
focal Needs triage

jammy Needs triage

trusty Needs triage

upstream Needs triage

xenial Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
libvncserver
Launchpad, Ubuntu, Debian
focal
Released (0.9.12+dfsg-9ubuntu0.2)
hirsute Not vulnerable
(0.9.13+dfsg-1)
lunar Not vulnerable
(0.9.13+dfsg-1)
bionic
Released (0.9.11+dfsg-1ubuntu1.3)
eoan Ignored
(end of life)
groovy Not vulnerable
(0.9.13+dfsg-1)
impish Not vulnerable
(0.9.13+dfsg-1)
jammy Not vulnerable
(0.9.13+dfsg-1)
kinetic Not vulnerable
(0.9.13+dfsg-1)
trusty Does not exist

upstream Needs triage

xenial
Released (0.9.10+dfsg-3ubuntu0.16.04.5)
mantic Not vulnerable
(0.9.13+dfsg-1)
Patches:
upstream: https://github.com/LibVNC/libvncserver/commit/8937203441ee241c4ace85da687b7d6633a12365

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H