CVE-2011-2495 - Non profit making Dynamometer

Description

fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc//io files which allows local users to obtain sensitive I/O statistics by polling a file as demonstrated by discovering the length of another user’s password.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1d1221f375c94ef961ba8574ac4f85c8870ddd51 http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4 https://github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51 http://www.openwall.com/lists/oss-security/2011/06/27/1 https://bugzilla.redhat.com/show_bug.cgi?id=716825 http://rhn.redhat.com/errata/RHSA-2011-1212.html