CVE-2010-4082 Information

Description

The viafb_ioctl_get_viafb_info function in drivers/video/via/ioctl.c in the Linux kernel before 2.6.36-rc5 does not properly initialize a certain structure member which allows local users to obtain potentially sensitive information from kernel stack memory via a VIAFB_GET_INFO ioctl call.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b4aaa78f4c2f9cde2f335b14f4ca30b01f9651ca http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html http://lkml.indiana.edu/hypermail//linux/kernel/1009.1/03392.html http://secunia.com/advisories/42778 http://secunia.com/advisories/42801 http://secunia.com/advisories/42890 http://secunia.com/advisories/42932 http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.36/ChangeLog-2.6.36-rc5 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/43817 http://www.vupen.com/english/advisories/2011/0012 http://www.vupen.com/english/advisories/2011/0124 http://www.vupen.com/english/advisories/2011/0298 https://bugzilla.redhat.com/show_bug.cgi?id=648671