** Description changed: - It was found that the default SCSI command filter does not accommodate - commands that overlap across device classes. A privileged guest user - could potentially use this flaw to write arbitrary data to a LUN that is - passed-through as read-only. + block/scsi_ioctl.c in the Linux kernel through 3.8 does not properly + consider the SCSI device class during authorization of SCSI commands, + which allows local users to bypass intended access restrictions via an + SG_IO ioctl call that leverages overlapping opcodes.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1131331 Title: CVE-2012-4542 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1131331/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
