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CVE-2018-20023

Published: Dec 19, 2018Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-665
7.5HIGH
NVD MITRE
EPSS Score
2.5%
Top 16.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

LibVNC before 8b06f835e259652b0ff026898014fc7297ade858 contains CWE-665: Improper Initialization vulnerability in VNC Repeater 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

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-665

Affected Products

Canonical Ltd.
commercial·GBaka canonical
UbuntuOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
LibVNCLibrary
OSS Libraries / generic-library
libvnc project
oss-projectaka libvncserver, vnc server, libvnc-server
libvncserverMixed
Communications / messaging-chat
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
and 2 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2018-20023?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://usn.ubuntu.com/3877-1/
usn.ubuntu.com
https://nvd.nist.gov/vuln/detail/CVE-2018-20023
nvd.nist.gov
https://github.com/LibVNC/libvncserver/commit/8b06f835e259652b0ff026898014fc7297ade858
github.com
and 8 more references View all →

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