CVE-2012-4542

high

Description

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

https://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=76a274e17114abf1a77de6b651424648ce9e10c8

https://bugzilla.redhat.com/show_bug.cgi?id=875360

http://rhn.redhat.com/errata/RHSA-2013-0928.html

http://rhn.redhat.com/errata/RHSA-2013-0882.html

http://rhn.redhat.com/errata/RHSA-2013-0579.html

http://rhn.redhat.com/errata/RHSA-2013-0496.html

http://marc.info/?l=linux-kernel&m=135904012416042&w=2

http://marc.info/?l=linux-kernel&m=135903967015813&w=2

Details

Source: Mitre, NVD

Published: 2013-02-28

Updated: 2025-04-11

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00051