CVE-2012-4542

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    CVE-2012-4542

    Published: 28 Feb 2013Last Modified: 10 Apr 2026

    Summary:

    Details: 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.

    References: http://rhn.redhat.com/errata/RHSA-2013-0496.html, http://rhn.redhat.com/errata/RHSA-2013-0579.html, http://rhn.redhat.com/errata/RHSA-2013-0882.html, http://rhn.redhat.com/errata/RHSA-2013-0928.html, https://bugzilla.redhat.com/show_bug.cgi?id=875360, http://marc.info/?l=linux-kernel&m=135903967015813&w=2, http://marc.info/?l=linux-kernel&m=135904012416042&w=2, https://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=76a274e17114abf1a77de6b651424648ce9e10c8

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High