CVE-2014-6052

2014-09-2400:00:00

ubuntu.com

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

EPSS

0.011

Percentile

84.5%

JSON

The HandleRFBServerMessage function in libvncclient/rfbproto.c in
LibVNCServer 0.9.9 and earlier does not check certain malloc return values,
which allows remote VNC servers to cause a denial of service (application
crash) or possibly execute arbitrary code by specifying a large screen size
in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3)
PalmVNCReSizeFrameBuffer message.

Notes

Author	Note
mdeslaur	same patches as CVE-2014-6051 krfb is only a server, this issue is client side.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchitalc< 1:3.0.1+dfsg1-1UNKNOWN
ubuntu16.04noarchitalc< 1:2.0.2+dfsg1-4ubuntu0.1UNKNOWN
ubuntu12.04noarchlibvncserver< 0.9.8.2-2ubuntu1.1UNKNOWN
ubuntu14.04noarchlibvncserver< 0.9.9+dfsg-1ubuntu1.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	italc	< 1:3.0.1+dfsg1-1	UNKNOWN
ubuntu	16.04	noarch	italc	< 1:2.0.2+dfsg1-4ubuntu0.1	UNKNOWN
ubuntu	12.04	noarch	libvncserver	< 0.9.8.2-2ubuntu1.1	UNKNOWN
ubuntu	14.04	noarch	libvncserver	< 0.9.9+dfsg-1ubuntu1.1	UNKNOWN