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CVE-2019-20788

Published: Apr 23, 2020Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-190
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
2.4%
Top 17.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer overflow via a large height or width value. NOTE: this may overlap CVE-2019-15690.

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-190CWE-787

Affected Products

libvncserverlibvnc project
Mixed
Communications / messaging-chat
ubuntu linuxcanonical
On-premOS
Operating Systems / linux-distro
debian linuxdebian
On-premOS
Operating Systems / linux-distro
simatic itc1500 firmwaresiemens
EmbeddedFirmware
ICS / OT / IoT / industrial-network
simatic itc1500 pro firmwaresiemens
EmbeddedFirmware
ICS / OT / IoT / industrial-network
libvnc projectoss-projectCommunicationsaka libvncserver, libvnc-server, vnc server
canonicalcommercialGBOperating Systemsaka canonical ltd.
debianoss-projectGBOperating Systemsaka debian gnu/linux
siemenscommercialDEEnterprise Softwareaka siemens ag
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00027.html
lists.opensuse.org
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
cert-portal.siemens.com
https://github.com/LibVNC/libvncserver/commit/54220248886b5001fbbb9fa73c4e1a2cb9413fed
github.com
and 32 more references View all →

Timeline

Published
Apr 23, 2020
Last Updated
Nov 21, 2024

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