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Vulnerability Details : CVE-2014-6053

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.
Publish Date : 2014-12-15 Last Update Date : 2016-12-21
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 19

- Related OVAL Definitions

Title Definition Id Class Family
DSA-3081-1 -- libvncserver security update oval:org.mitre.oval:def:28422 unix
ELSA-2014-1826 -- libvncserver security update (moderate) oval:org.mitre.oval:def:28316 unix
ELSA-2014-1827 -- kdenetwork security update (moderate) oval:org.mitre.oval:def:28219 unix
RHSA-2014:1826 -- libvncserver security update (Moderate) oval:org.mitre.oval:def:28208 unix
RHSA-2014:1826: libvncserver security update (Moderate) oval:com.redhat.rhsa:def:20141826 unix
RHSA-2014:1827 -- kdenetwork security update (Moderate) oval:org.mitre.oval:def:28039 unix
RHSA-2014:1827: kdenetwork security update (Moderate) oval:com.redhat.rhsa:def:20141827 unix
USN-2365-1 -- libvncserver vulnerabilities oval:org.mitre.oval:def:27178 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-6053

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Debian Debian Linux 7.0 Version Details Vulnerabilities
4 Application Libvncserver Libvncserver 0.9.9 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 2
Debian Debian Linux 1
Libvncserver Libvncserver 1

- References For CVE-2014-6053

https://security.gentoo.org/glsa/201507-07
GENTOO GLSA-201507-07
https://github.com/newsoft/libvncserver/commit/6037a9074d52b1963c97cb28ea1096c7c14cbf28 CONFIRM
http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
SUSE openSUSE-SU-2015:2207
http://seclists.org/oss-sec/2014/q3/639
MLIST [oss-security] 20140923 Multiple issues in libVNCserver
http://www.debian.org/security/2014/dsa-3081
DEBIAN DSA-3081
http://www.ocert.org/advisories/ocert-2014-007.html
http://www.openwall.com/lists/oss-security/2014/09/25/11
MLIST [oss-security] 20140925 [oCERT-2014-007] libvncserver multiple issues
http://ubuntu.com/usn/usn-2365-1
UBUNTU USN-2365-1

- Metasploit Modules Related To CVE-2014-6053

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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