CVE-2010-4075 Information

Description

The uart_get_count function in drivers/serial/serial_core.c in the Linux kernel before 2.6.37-rc1 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/1009.1/03388.html http://secunia.com/advisories/42884 http://secunia.com/advisories/42890 http://secunia.com/advisories/42963 http://secunia.com/advisories/46397 http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc1 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.redhat.com/support/errata/RHSA-2011-0017.html http://www.redhat.com/support/errata/RHSA-2011-0162.html http://www.securityfocus.com/archive/1/520102/100/0/threaded http://www.securityfocus.com/bid/43806 http://www.vmware.com/security/advisories/VMSA-2011-0012.html http://www.vupen.com/english/advisories/2011/0168 https://bugzilla.redhat.com/show_bug.cgi?id=648660