Attacker Value
Unknown
0
CVE-2019-20840
0
CVE ID
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CVE-2019-20840
(Last updated November 08, 2023) ▾
MITRE ATT&CK
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Persistence
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Description
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/ws_decode.c can lead to a crash because of unaligned accesses in hybiReadAndDecode.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
n/a
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- canonical,
- debian,
- libvnc project,
- opensuse,
- siemens
Products
- debian linux 8.0,
- debian linux 9.0,
- leap 15.2,
- libvncserver,
- simatic itc1500 firmware,
- simatic itc1500 pro firmware,
- simatic itc1900 firmware,
- simatic itc1900 pro firmware,
- simatic itc2200 firmware,
- simatic itc2200 pro firmware,
- ubuntu linux 14.04,
- ubuntu linux 16.04,
- ubuntu linux 18.04,
- ubuntu linux 18.10,
- ubuntu linux 20.04
References
Advisory
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Exploited in the Wild
CVE ID
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