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CVE-2019-20840

nvd nist
Published: Jun 17, 2020Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

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.

Affected (16)

Show all products
Libvnc Project: Libvncserver · Canonical: Ubuntu Linux · Debian: Debian Linux · Siemens: Simatic Itc1500 Firmware, Simatic Itc1500 Pro Firmware, Simatic Itc1900 Firmware, Simatic Itc1900 Pro Firmware, Simatic Itc2200 Firmware, Simatic Itc2200 Pro Firmware · Opensuse: Leap
Libvnc Project
1 product
Libvncserver
Canonical
1 product
Ubuntu Linux
Debian
1 product
Debian Linux
Siemens
6 products
Simatic Itc1500 Firmware
Simatic Itc1500 Pro Firmware
Simatic Itc1900 Firmware
Simatic Itc1900 Pro Firmware
Simatic Itc2200 Firmware
Simatic Itc2200 Pro Firmware
Opensuse
1 product
Leap
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Libvncserver
Up to 0.9.12
Configuration B
6 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 14.04
Ubuntu Linux
Version 16.04
Ubuntu Linux
Version 16.04
Ubuntu Linux
Version 18.04
Ubuntu Linux
Version 18.10
Ubuntu Linux
Version 20.04
Configuration C
2 vulnerable
Vulnerable SoftwareAffected Versions
Debian
Debian Linux
Version 8.0
Debian Linux
Version 9.0
Configuration D
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Itc1500 Firmware
From 3.0.0.0 to 3.2.1.0
Running on/withPlatform Versions
Siemens
Simatic Itc1500
All versions
Configuration E
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Itc1500 Pro Firmware
From 3.0.0.0 to 3.2.1.0
Running on/withPlatform Versions
Siemens
Simatic Itc1500 Pro
All versions
Configuration F
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Itc1900 Firmware
From 3.0.0.0 to 3.2.1.0
Running on/withPlatform Versions
Siemens
Simatic Itc1900
All versions
Configuration G
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Itc1900 Pro Firmware
From 3.0.0.0 to 3.2.1.0
Running on/withPlatform Versions
Siemens
Simatic Itc1900 Pro
All versions
Configuration H
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Itc2200 Firmware
From 3.0.0.0 to 3.2.1.0
Running on/withPlatform Versions
Siemens
Simatic Itc2200
All versions
Configuration I
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Itc2200 Pro Firmware
From 3.0.0.0 to 3.2.1.0
Running on/withPlatform Versions
Siemens
Simatic Itc2200 Pro
All versions
Configuration J
1 vulnerable
Vulnerable SoftwareAffected Versions
Leap
Version 15.2

Related CWEs

CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.

References (16)

Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Release NotesThird Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.