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CVE-2018-20022

Published: 19 December 2018

LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and can be abuse for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and in bypassing ASLR

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
italc
Launchpad, Ubuntu, Debian
bionic
Released (1:3.0.3+dfsg1-3ubuntu0.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist
(trusty was needed)
upstream
Released (1:3.0.3+dfsg1-1+deb9u1, 1:2.0.2+dfsg1-2+deb8u1)
xenial
Released (1:2.0.2+dfsg1-4ubuntu0.1)
libvncserver
Launchpad, Ubuntu, Debian
bionic
Released (0.9.11+dfsg-1ubuntu1.1)
cosmic
Released (0.9.11+dfsg-1.1ubuntu0.1)
disco Not vulnerable
(0.9.11+dfsg-1.2)
focal Not vulnerable
(0.9.11+dfsg-1.2)
groovy Not vulnerable
(0.9.11+dfsg-1.2)
hirsute Not vulnerable
(0.9.11+dfsg-1.2)
impish Not vulnerable
(0.9.11+dfsg-1.2)
jammy Not vulnerable
(0.9.11+dfsg-1.2)
precise Does not exist

trusty Does not exist
(trusty was released [0.9.9+dfsg-1ubuntu1.4])
upstream
Released (0.9.11+dfsg-1.2)
xenial
Released (0.9.10+dfsg-3ubuntu0.16.04.3)
Patches:
upstream: https://github.com/LibVNC/libvncserver/commit/2f5b2ad1c6c99b1ac6482c95844a84d66bb52838
ssvnc
Launchpad, Ubuntu, Debian
bionic Needed

focal Not vulnerable
(1.0.29-5)
groovy Not vulnerable
(1.0.29-5)
hirsute Not vulnerable
(1.0.29-5)
impish Not vulnerable
(1.0.29-5)
jammy Not vulnerable
(1.0.29-5)
precise Does not exist

trusty Does not exist
(trusty was needed)
upstream
Released (1.0.29-2+deb8u1, 1.0.29-3+deb9u1, 1.0.29-4+deb10u1, 1.0.29-5)
xenial
Released (1.9.29-2+deb8u1build0.16.04.1)
tightvnc
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish Needs triage

jammy Needs triage

precise Does not exist

trusty Does not exist
(trusty was needed)
upstream
Released (1:1.3.9-6.5+deb8u1)
xenial Ignored
(end of standard support, was needs-triage)
x11vnc
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(uses shared libvnc)
cosmic Ignored
(reached end-of-life)
disco Not vulnerable
(uses shared libvnc)
focal Not vulnerable
(uses shared libvnc)
groovy Not vulnerable
(uses shared libvnc)
hirsute Not vulnerable
(uses shared libvnc)
impish Not vulnerable
(uses shared libvnc)
jammy Not vulnerable
(uses shared libvnc)
precise Does not exist

trusty Not vulnerable
(uses shared libvnc)
upstream Needs triage

xenial Not vulnerable
(uses shared libvnc)