CVE-2018-20023

2018-12-1900:00:00

ubuntu.com

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.006 Low

EPSS

Percentile

77.8%

JSON

LibVNC before 8b06f835e259652b0ff026898014fc7297ade858 contains CWE-665:
Improper Initialization vulnerability in VNC Repeater 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

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

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