National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2014-6052 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
http://seclists.org/oss-sec/2014/q3/639 Mailing List Third Party Advisory
http://ubuntu.com/usn/usn-2365-1 Third Party Advisory
http://www.debian.org/security/2014/dsa-3081 Third Party Advisory
http://www.ocert.org/advisories/ocert-2014-007.html Third Party Advisory US Government Resource
http://www.openwall.com/lists/oss-security/2014/09/25/11 Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html Third Party Advisory
http://www.securityfocus.com/bid/70091
https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812 Exploit Issue Tracking Patch
https://security.gentoo.org/glsa/201507-07

Technical Details

Vulnerability Type (View All)

  • Improper Input Validation (CWE-20)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:libvncserver:libvncserver
     Show Matching CPE(s)
Up to (including)
0.9.9

Configuration 2 ( hide )
 cpe:/o:oracle:solaris:11.3
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:/o:debian:debian_linux:7.0
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:/o:canonical:ubuntu_linux:12.04::~~lts~~~
     Show Matching CPE(s)
 cpe:/o:canonical:ubuntu_linux:14.04::~~lts~~~
     Show Matching CPE(s)


Change History

10 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-6052
NVD Published Date:
12/15/2014
NVD Last Modified:
12/21/2016