CVE-2018-20021

2018-12-1900:00:00

ubuntu.com

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.01

Percentile

83.4%

JSON

LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a
CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability
allows attacker to consume excessive amount of resources like CPU and RAM

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchitalc< 1:3.0.3+dfsg1-3ubuntu0.1UNKNOWN
ubuntu16.04noarchitalc< 1:2.0.2+dfsg1-4ubuntu0.1UNKNOWN
ubuntu18.04noarchlibvncserver< 0.9.11+dfsg-1ubuntu1.1UNKNOWN
ubuntu18.10noarchlibvncserver< 0.9.11+dfsg-1.1ubuntu0.1UNKNOWN
ubuntu14.04noarchlibvncserver< 0.9.9+dfsg-1ubuntu1.4UNKNOWN
ubuntu16.04noarchlibvncserver< 0.9.10+dfsg-3ubuntu0.16.04.3UNKNOWN
ubuntu18.04noarchssvnc< anyUNKNOWN
ubuntu16.04noarchssvnc< 1.9.29-2+deb8u1build0.16.04.1UNKNOWN
ubuntu18.04noarchtightvnc< anyUNKNOWN
ubuntu20.04noarchtightvnc< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	italc	< 1:3.0.3+dfsg1-3ubuntu0.1	UNKNOWN
ubuntu	16.04	noarch	italc	< 1:2.0.2+dfsg1-4ubuntu0.1	UNKNOWN
ubuntu	18.04	noarch	libvncserver	< 0.9.11+dfsg-1ubuntu1.1	UNKNOWN
ubuntu	18.10	noarch	libvncserver	< 0.9.11+dfsg-1.1ubuntu0.1	UNKNOWN
ubuntu	14.04	noarch	libvncserver	< 0.9.9+dfsg-1ubuntu1.4	UNKNOWN
ubuntu	16.04	noarch	libvncserver	< 0.9.10+dfsg-3ubuntu0.16.04.3	UNKNOWN
ubuntu	18.04	noarch	ssvnc	< any	UNKNOWN
ubuntu	16.04	noarch	ssvnc	< 1.9.29-2+deb8u1build0.16.04.1	UNKNOWN
ubuntu	18.04	noarch	tightvnc	< any	UNKNOWN
ubuntu	20.04	noarch	tightvnc	< any	UNKNOWN