CVE-2018-20022

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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
KasperskyCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 89%
VendorProductVersion
libvnc_projectlibvncserver
𝑥
< 0.9.12
debiandebian_linux
8.0
debiandebian_linux
9.0
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
18.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libvncserver
bullseye
0.9.13+dfsg-2+deb11u1
fixed
sid
0.9.14+dfsg-1
fixed
trixie
0.9.14+dfsg-1
fixed
bookworm
0.9.14+dfsg-1
fixed
ssvnc
bullseye
1.0.29-5
fixed
bookworm
1.0.29-6
fixed
sid
1.0.29-6.1
fixed
trixie
1.0.29-6.1
fixed
tightvnc
bullseye
1:1.3.10-3
fixed
bookworm
1:1.3.10-7
fixed
sid
1:1.3.10-9
fixed
trixie
1:1.3.10-9
fixed
veyon
bullseye
4.5.3+repack1-1
fixed
bookworm
4.7.5+repack1-1
fixed
sid
4.7.5+repack1-1.1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
italc
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
bionic
Fixed 1:3.0.3+dfsg1-3ubuntu0.1
released
xenial
Fixed 1:2.0.2+dfsg1-4ubuntu0.1
released
trusty
dne
libvncserver
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
disco
not-affected
cosmic
Fixed 0.9.11+dfsg-1.1ubuntu0.1
released
bionic
Fixed 0.9.11+dfsg-1ubuntu1.1
released
xenial
Fixed 0.9.10+dfsg-3ubuntu0.16.04.3
released
trusty
Fixed 0.9.9+dfsg-1ubuntu1.4
released
ssvnc
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
bionic
needed
xenial
Fixed 1.9.29-2+deb8u1build0.16.04.1
released
trusty
dne
tightvnc
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
Fixed 1.3.9-6.5+deb8u1build0.14.04.1~esm1
released
x11vnc
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
disco
not-affected
cosmic
ignored
bionic
not-affected
xenial
not-affected
trusty
not-affected