Provide references for CVE-2015-6520.
Where can I find more information about CVE-2015-6520?
References are available at: http://www.openwall.com/lists/oss-security/2015/08/18/11, https://bugs.launchpad.net/ubuntu/+source/ippusbxd/+bug/1455644, https://github.com/tillkamppeter/ippusbxd/commit/46844402bca7a38fc224483ba6f0a93c4613203f, http://www.ubuntu.com/usn/USN-2725-1, http://www.openwall.com/lists/oss-security/2015/08/11/1.