CVE-2010-4077 Information

Description

The ntty_ioctl_tiocgicount function in drivers/char/nozomi.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certain structure member which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d281da7ff6f70efca0553c288bb883e8605b3862 http://lkml.indiana.edu/hypermail//linux/kernel/1009.1/03387.html http://secunia.com/advisories/42890 http://securityreason.com/securityalert/8129 http://www.openwall.com/lists/oss-security/2010/09/25/2 http://www.openwall.com/lists/oss-security/2010/10/06/6 http://www.openwall.com/lists/oss-security/2010/10/07/1 http://www.openwall.com/lists/oss-security/2010/10/25/3 http://www.redhat.com/support/errata/RHSA-2010-0958.html http://www.redhat.com/support/errata/RHSA-2011-0007.html http://www.securityfocus.com/bid/45059 https://bugzilla.redhat.com/show_bug.cgi?id=648663