CVE-2010-4079 Information

Description

The ivtvfb_ioctl function in drivers/media/video/ivtv/ivtvfb.c in the Linux kernel before 2.6.36-rc8 does not properly initialize a certain structure member which allows local users to obtain potentially sensitive information from kernel stack memory via an FBIOGET_VBLANK ioctl call.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=405707985594169cfd0b1d97d29fcb4b4c6f2ac9 http://lkml.org/lkml/2010/9/15/393 http://secunia.com/advisories/42890 http://www.debian.org/security/2010/dsa-2126 http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.36/ChangeLog-2.6.36-rc8 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/45062 https://bugzilla.redhat.com/show_bug.cgi?id=648666