CVE Vulnerabilities

CVE-2018-21247

Missing Initialization of Resource

Published: Jun 17, 2020 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Ubuntu
LOW

An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) in the libvncclient/rfbproto.c ConnectToRFBRepeater function.

Weakness

The product does not initialize a critical resource.

Affected Software

Name Vendor Start Version End Version
Libvncserver Libvnc_project * 0.9.12 (including)
Red Hat Enterprise Linux 8 RedHat libvncserver-0:0.9.11-17.el8 *
Libvncserver Ubuntu bionic *
Libvncserver Ubuntu eoan *
Libvncserver Ubuntu trusty *
Libvncserver Ubuntu xenial *
Veyon Ubuntu eoan *
Veyon Ubuntu groovy *
Veyon Ubuntu hirsute *
Veyon Ubuntu impish *
Veyon Ubuntu kinetic *
Veyon Ubuntu lunar *
Veyon Ubuntu mantic *
Veyon Ubuntu trusty *
Vino Ubuntu trusty *
X11vnc Ubuntu bionic *
X11vnc Ubuntu eoan *
X11vnc Ubuntu groovy *
X11vnc Ubuntu hirsute *
X11vnc Ubuntu impish *
X11vnc Ubuntu kinetic *
X11vnc Ubuntu lunar *
X11vnc Ubuntu mantic *
X11vnc Ubuntu trusty *
X11vnc Ubuntu trusty/esm *
X11vnc Ubuntu xenial *

Potential Mitigations

References