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Vulnerability Details : CVE-2014-6052

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.
Publish Date : 2014-12-15 Last Update Date : 2020-10-23
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
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 ServiceExecute Code
CWE ID 20

- 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
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
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-2014-6052

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
3 OS Debian Debian Linux 7.0 * * * Version Details Vulnerabilities
4 Application Libvncserver Libvncserver * * * * Version Details Vulnerabilities
5 OS Oracle Solaris 11.3 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

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

- References For CVE-2014-6052

http://seclists.org/oss-sec/2014/q3/639
MLIST [oss-security] 20140923 Multiple issues in libVNCserver
http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
SUSE openSUSE-SU-2015:2207
http://ubuntu.com/usn/usn-2365-1
UBUNTU USN-2365-1
http://www.openwall.com/lists/oss-security/2014/09/25/11
MLIST [oss-security] 20140925 [oCERT-2014-007] libvncserver multiple issues
http://www.debian.org/security/2014/dsa-3081
DEBIAN DSA-3081
http://secunia.com/advisories/61506
SECUNIA 61506
http://secunia.com/advisories/61682
SECUNIA 61682
https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812 CONFIRM
http://www.securityfocus.com/bid/70091
BID 70091 LibVNCServer CVE-2014-6052 Denial of Service Vulnerability Release Date:2015-07-08
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html CONFIRM
http://www.ocert.org/advisories/ocert-2014-007.html
https://security.gentoo.org/glsa/201507-07
GENTOO GLSA-201507-07
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
MLIST [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update
https://usn.ubuntu.com/4587-1/
UBUNTU USN-4587-1

- Metasploit Modules Related To CVE-2014-6052

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


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