The Linux kernel through 3.7.9 allows local users to obtain sensitive information about keystroke timing by using the inotify API on the /dev/ptmx device.

References

• https://nvd.nist.gov/vuln/detail/CVE-2013-0160
• https://bugzilla.redhat.com/show_bug.cgi?id=892983
• http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html
• http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00016.html
• http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
• http://www.openwall.com/lists/oss-security/2013/01/08/3
• http://www.ubuntu.com/usn/USN-2128-1
• http://www.ubuntu.com/usn/USN-2129-1