CVE-2018-20022

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Source
https://nvd.nist.gov/vuln/detail/CVE-2018-20022
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20022.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-20022
Downstream
Related
Published
2018-12-19T16:29:00Z
Modified
2025-07-01T05:40:47.250234Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC 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

References

Affected packages

Debian:11 / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/debian/libvncserver?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.11+dfsg-1.2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/debian/libvncserver?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.11+dfsg-1.2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / libvncserver

Package

Name
libvncserver
Purl
pkg:deb/debian/libvncserver?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.11+dfsg-1.2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:11 / ssvnc

Package

Name
ssvnc
Purl
pkg:deb/debian/ssvnc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.29-5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / ssvnc

Package

Name
ssvnc
Purl
pkg:deb/debian/ssvnc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.29-5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / ssvnc

Package

Name
ssvnc
Purl
pkg:deb/debian/ssvnc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.29-5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:11 / tightvnc

Package

Name
tightvnc
Purl
pkg:deb/debian/tightvnc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.3.9-9.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / tightvnc

Package

Name
tightvnc
Purl
pkg:deb/debian/tightvnc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.3.9-9.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / tightvnc

Package

Name
tightvnc
Purl
pkg:deb/debian/tightvnc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.3.9-9.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:11 / veyon

Package

Name
veyon
Purl
pkg:deb/debian/veyon?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.1.4+repack1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / veyon

Package

Name
veyon
Purl
pkg:deb/debian/veyon?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.1.4+repack1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / veyon

Package

Name
veyon
Purl
pkg:deb/debian/veyon?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.1.4+repack1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/libvnc/libvncserver

Affected ranges

Type
GIT
Repo
https://github.com/libvnc/libvncserver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0a70095271d845d16a3ed17354841b01f33963ad

Affected versions

LibVNCServer-0.*

LibVNCServer-0.9.10
LibVNCServer-0.9.11
LibVNCServer-0.9.8
LibVNCServer-0.9.9

Other

X11VNC_0_9_10
X11VNC_0_9_11
X11VNC_0_9_12
X11VNC_0_9_7
X11VNC_0_9_8
X11VNC_0_9_9
X11VNC_REL_0_9_4
X11VNC_REL_0_9_5
X11VNC_REL_0_9_6