CVE-2014-6052

Name: CVE-2014-6052
Creator: NVD / NIST
Published: 2014-12-15T18:59:04.033+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.75%

Last modified Jun 17, 2026

CVE-2014-6052 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 6.75% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

6.75%

93.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Libvncserver	Libvncserver	<= 0.9.9
Oracle	Solaris	11.3
Debian	Debian Linux	7.0
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04

References

http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
http://seclists.org/oss-sec/2014/q3/639Mailing List, Third Party Advisory
http://secunia.com/advisories/61506Permissions Required, Third Party Advisory
http://secunia.com/advisories/61682Permissions Required, Third Party Advisory
http://ubuntu.com/usn/usn-2365-1Third Party Advisory
http://www.debian.org/security/2014/dsa-3081Third Party Advisory
http://www.ocert.org/advisories/ocert-2014-007.htmlThird Party Advisory, US Government Resource
http://www.openwall.com/lists/oss-security/2014/09/25/11Mailing List, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
http://www.securityfocus.com/bid/70091
https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812Exploit, Issue Tracking, Patch
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://security.gentoo.org/glsa/201507-07
https://usn.ubuntu.com/4587-1/
http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
http://seclists.org/oss-sec/2014/q3/639Mailing List, Third Party Advisory
http://secunia.com/advisories/61506Permissions Required, Third Party Advisory
http://secunia.com/advisories/61682Permissions Required, Third Party Advisory
http://ubuntu.com/usn/usn-2365-1Third Party Advisory
http://www.debian.org/security/2014/dsa-3081Third Party Advisory
http://www.ocert.org/advisories/ocert-2014-007.htmlThird Party Advisory, US Government Resource
http://www.openwall.com/lists/oss-security/2014/09/25/11Mailing List, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
http://www.securityfocus.com/bid/70091
https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812Exploit, Issue Tracking, Patch
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://security.gentoo.org/glsa/201507-07
https://usn.ubuntu.com/4587-1/

Timeline

Published: Dec 15, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-6052?

How severe is CVE-2014-6052?

Severity scoring for CVE-2014-6052 is pending analysis. The EPSS model estimates a 6.75% probability of exploitation in the next 30 days.

How do I fix CVE-2014-6052?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-6052?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST