CVE-2011-4127 Information

Description

The Linux kernel before 3.2.2 does not properly restrict SG_IO ioctl calls which allows local users to bypass intended restrictions on disk read and write operations by sending a SCSI command to (1) a partition block device or (2) an LVM volume.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0bfc96cb77224736dfa35c3c555d37b3646ef35e http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ec8013beddd717d1740cfefb1a9b900deef85462 http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html http://secunia.com/advisories/48898 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2 http://www.openwall.com/lists/oss-security/2011/12/22/5 https://bugzilla.redhat.com/show_bug.cgi?id=752375 https://github.com/torvalds/linux/commit/0bfc96cb77224736dfa35c3c555d37b3646ef35e https://github.com/torvalds/linux/commit/ec8013beddd717d1740cfefb1a9b900deef85462