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CVE-2018-20749

Published: Jan 30, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-787
9.8CRITICAL
NVD MITRE
EPSS Score
3.2%
Top 13.3%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
OpenVAS

Description

LibVNC before 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
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:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

siemens
commercial·DEaka siemens ag
simatic itc1500 firmware
ICS / OT / IoT
simatic itc1500 pro firmware
ICS / OT / IoT
simatic itc1900 firmware
ICS / OT / IoT
simatic itc1900 pro firmware
ICS / OT / IoT
simatic itc2200 firmware
ICS / OT / IoT
simatic itc2200 pro firmware
ICS / OT / IoT
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
LibVNCServerLibraryLibrary
OSS Libraries / generic-library
libvnc project
oss-projectaka libvncserver, libvnc-server, vnc server
libvncserverMixed
Communications / messaging-chat
Canonical Ltd.
commercial·GBaka canonical
UbuntuOn-premOS
Operating Systems / linux-distro
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
and 2 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Is your org exposed to CVE-2018-20749?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://www.securityfocus.com/bid/106825
securityfocus.com
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
cert-portal.siemens.com
https://github.com/LibVNC/libvncserver/commit/15bb719c03cc70f14c36a843dcb16ed69b405707
github.com
and 43 more references View all →
News mentions
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