National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2014-6053 Detail

Current Description

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
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
https://github.com/newsoft/libvncserver/commit/6037a9074d52b1963c97cb28ea1096c7c14cbf28 Issue Tracking Patch
https://security.gentoo.org/glsa/201507-07

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:libvncserver:libvncserver:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
0.9.9

Configuration 2 ( hide )
 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-6053
NVD Published Date:
12/15/2014
NVD Last Modified:
12/21/2016