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CVE-2019-15679

Published: 29 October 2019

TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially result code execution. This attack appear to be exploitable via network connectivity.

From the Ubuntu Security Team

Pavel Cheremushkin discovered that TightVNC contains a heap buffer overflow vulnerability. An attacker could use it to cause a Denial of Service or possible a remote code execution.

Notes

AuthorNote
mdeslaur
this CVE is for tightvnc, the equivalent flaw was CVE-2018-20748
in libvncserver

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
libvncserver
Launchpad, Ubuntu, Debian
bionic Not vulnerable

disco Not vulnerable

eoan Not vulnerable

focal Not vulnerable

trusty Does not exist

upstream Needs triage

xenial Not vulnerable

impish Not vulnerable

groovy Not vulnerable

hirsute Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

mantic Not vulnerable

tightvnc
Launchpad, Ubuntu, Debian
upstream Needs triage

xenial Needs triage

bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

trusty
Released (1.3.9-6.5+deb8u1build0.14.04.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
hirsute Ignored
(end of life)
impish Ignored
(end of life)
mantic Needs triage

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

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

xenial Needs triage

groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
trusty Needs triage

upstream Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
ssvnc
Launchpad, Ubuntu, Debian
bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

trusty Does not exist

upstream Needs triage

groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
xenial Needs triage

jammy Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
veyon
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Ignored
(end of life)
impish Ignored
(end of life)
groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

eoan Ignored
(end of life)
focal Needs triage

hirsute Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
vncsnapshot
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
xenial Needs triage

jammy Needs triage

bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
trusty Does not exist

upstream Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
x2vnc
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
xenial Needs triage

jammy Needs triage

bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
trusty Does not exist

upstream Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H