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USN-2365-1: LibVNCServer vulnerabilities

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USN-2365-1: LibVNCServer vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
09/29/2014
Created
07/25/2018
Added
09/30/2014
Modified
07/09/2020

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.

Solution(s)

  • ubuntu-upgrade-libvncserver0

References

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