Improper Input Validation Affecting libvncserver-devel package, versions <0:0.9.9-9.el7_0.1


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
6.76% (94th percentile)

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  • Snyk IDSNYK-ORACLE7-LIBVNCSERVERDEVEL-2484649
  • published10 Apr 2022
  • disclosed15 Dec 2014

Introduced: 15 Dec 2014

CVE-2014-6052  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Oracle:7 libvncserver-devel to version 0:0.9.9-9.el7_0.1 or higher.
This issue was patched in ELSA-2014-1826.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvncserver-devel package and not the libvncserver-devel package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1