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CVE-2018-20748

Published: 30 January 2019

LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.

Notes

AuthorNote
mdeslaur
Further fixes for CVE-2018-20019
Priority

Medium

CVSS 3 base score: 9.8

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

kinetic 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-1.3)
focal Not vulnerable
(0.9.11+dfsg-1.3)
groovy Not vulnerable
(0.9.11+dfsg-1.3)
hirsute Not vulnerable
(0.9.11+dfsg-1.3)
impish Not vulnerable
(0.9.11+dfsg-1.3)
jammy Not vulnerable
(0.9.11+dfsg-1.3)
kinetic Not vulnerable
(0.9.11+dfsg-1.3)
precise Does not exist

trusty Does not exist
(trusty was released [0.9.9+dfsg-1ubuntu1.4])
upstream
Released (0.9.11+dfsg-1.3)
xenial
Released (0.9.10+dfsg-3ubuntu0.16.04.3)
Patches:
upstream: https://github.com/LibVNC/libvncserver/commit/c5ba3fee85a7ecbbca1df5ffd46d32b92757bc2a
upstream: https://github.com/LibVNC/libvncserver/commit/e34bcbb759ca5bef85809967a268fdf214c1ad2c
upstream: https://github.com/LibVNC/libvncserver/commit/c2c4b81e6cb3b485fb1ec7ba9e7defeb889f6ba7
upstream: https://github.com/LibVNC/libvncserver/commit/a64c3b37af9a6c8f8009d7516874b8d266b42bae
tightvnc
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

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

kinetic 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)
kinetic Not vulnerable
(uses shared libvnc)
precise Does not exist

trusty Not vulnerable
(uses shared libvnc)
upstream Needs triage

xenial Not vulnerable
(uses shared libvnc)