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CVE-2018-21247

Published: 17 June 2020

An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) in the libvncclient/rfbproto.c ConnectToRFBRepeater function.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

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

focal Not vulnerable

groovy Not vulnerable

trusty Does not exist

upstream Needs triage

xenial Not vulnerable

hirsute Not vulnerable

impish Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

mantic Not vulnerable

veyon
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Ignored
(end of life)
focal Needs triage

trusty Does not exist

upstream Needs triage

xenial Does not exist

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

mantic Needs triage

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

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

bionic Needs triage

eoan Ignored
(end of life)
groovy Ignored
(end of life)
impish Ignored
(end of life)
jammy Needs triage

trusty Needs triage

upstream Needs triage

mantic Needs triage

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

hirsute Not vulnerable
(0.9.13+dfsg-1)
xenial Needs triage

bionic Needs triage

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)
lunar Not vulnerable
(0.9.13+dfsg-1)
trusty Does not exist

upstream Needs triage

mantic Not vulnerable
(0.9.13+dfsg-1)
Patches:
upstream: https://github.com/LibVNC/libvncserver/commit/8b06f835e259652b0ff026898014fc7297ade858

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N