CVE-2014-6052

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CVE-2014-6052

Summary:

Details: 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.

References: http://seclists.org/oss-sec/2014/q3/639, http://secunia.com/advisories/61506, http://secunia.com/advisories/61682, http://ubuntu.com/usn/usn-2365-1, http://www.debian.org/security/2014/dsa-3081, http://www.ocert.org/advisories/ocert-2014-007.html, http://www.openwall.com/lists/oss-security/2014/09/25/11, http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html, https://security.gentoo.org/glsa/201507-07, http://seclists.org/oss-sec/2014/q3/639, http://www.openwall.com/lists/oss-security/2014/09/25/11, https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812, https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812, http://secunia.com/advisories/61506, http://secunia.com/advisories/61682, https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812, http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html, http://www.securityfocus.com/bid/70091, https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html, https://usn.ubuntu.com/4587-1/