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CVE-2020-14399

Published: 17 June 2020

** DISPUTED ** An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed."

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
libvncserver
Launchpad, Ubuntu, Debian
bionic
Released (0.9.11+dfsg-1ubuntu1.3)
eoan Ignored
(end of life)
focal
Released (0.9.12+dfsg-9ubuntu0.2)
groovy Not vulnerable
(0.9.13+dfsg-1)
hirsute 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)
mantic Not vulnerable
(0.9.13+dfsg-1)
trusty Does not exist

upstream Needs triage

xenial
Released (0.9.10+dfsg-3ubuntu0.16.04.5)
Patches:
upstream: https://github.com/LibVNC/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a618174d3c2d
veyon
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Ignored
(end of life)
focal Needs triage

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

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

trusty Does not exist

upstream Needs triage

xenial Does not exist

x11vnc
Launchpad, Ubuntu, Debian
bionic Needs triage

eoan Ignored
(end of life)
focal Needs triage

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

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

trusty Needs triage

upstream Needs triage

xenial Needs triage

Severity score breakdown

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