Vulnerability CVE-2014-6054
Published: 2014-10-06

Description:
The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier allows remote attackers to cause a denial of service (divide-by-zero error and server crash) via a zero value in the scaling factor in a (1) PalmVNCSetScaleFactor or (2) SetScale message.

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Libvncserver -> Libvncserver 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
http://seclists.org/oss-sec/2014/q3/639
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.securityfocus.com/bid/70094
http://www.ubuntu.com/usn/USN-2365-1
https://github.com/newsoft/libvncserver/commit/05a9bd41a8ec0a9d580a8f420f41718bdd235446
https://security.gentoo.org/glsa/201507-07
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