CVE-2014-6052

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 4.54% Top 15%
Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ocert.org/advisories/ocert-2014-007.html third party advisory us government resource
http://secunia.com/advisories/61682 third party advisory permissions required
http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html vendor advisory
http://secunia.com/advisories/61506 third party advisory permissions required
https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812 issue tracking exploit patch
http://www.openwall.com/lists/oss-security/2014/09/25/11 third party advisory mailing list
http://seclists.org/oss-sec/2014/q3/639 third party advisory mailing list
http://ubuntu.com/usn/usn-2365-1 third party advisory vendor advisory
https://security.gentoo.org/glsa/201507-07 vendor advisory
http://www.securityfocus.com/bid/70091 vdb entry
http://www.debian.org/security/2014/dsa-3081 third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html third party advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html mailing list
https://usn.ubuntu.com/4587-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2014-6052?
CVE-2014-6052 has been scored as a high severity vulnerability.
How to fix CVE-2014-6052?
To fix CVE-2014-6052, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-6052 being actively exploited in the wild?
It is possible that CVE-2014-6052 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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