CVE-2017-18922

It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
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CVEADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 88%
VendorProductVersion
libvncserver_projectlibvncserver
𝑥
< 0.9.12
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
19.10
canonicalubuntu_linux
20.04
opensuseleap
15.1
opensuseleap
15.2
siemenssimatic_itc1500_firmware
3.0.0.0 ≤
𝑥
< 3.2.1.0
siemenssimatic_itc1500_pro_firmware
3.0.0.0 ≤
𝑥
< 3.2.1.0
siemenssimatic_itc1900_firmware
3.0.0.0 ≤
𝑥
< 3.2.1.0
siemenssimatic_itc1900_pro_firmware
3.0.0.0 ≤
𝑥
< 3.2.1.0
siemenssimatic_itc2200_firmware
3.0.0.0 ≤
𝑥
< 3.2.1.0
siemenssimatic_itc2200_pro_firmware
3.0.0.0 ≤
𝑥
< 3.2.1.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libvncserver
bullseye
0.9.13+dfsg-2+deb11u1
fixed
buster
ignored
stretch
ignored
bookworm
0.9.14+dfsg-1
fixed
sid
0.9.14+dfsg-1
fixed
trixie
0.9.14+dfsg-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
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
Fixed 0.9.12+dfsg-9ubuntu0.1
released
eoan
Fixed 0.9.11+dfsg-1.3ubuntu0.1
released
bionic
Fixed 0.9.11+dfsg-1ubuntu1.2
released
xenial
Fixed 0.9.10+dfsg-3ubuntu0.16.04.4
released
trusty
dne
veyon
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
bionic
dne
xenial
dne
trusty
dne
x11vnc
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
bionic
needs-triage
xenial
needs-triage
trusty
needs-triage
References