SB2013022813 - Permissions, Privileges, and Access Controls in Linux kernel 

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Main Vulnerability Database SB2013022813

SB2013022813 - Permissions, Privileges, and Access Controls in Linux kernel

Published: February 28, 2013 Updated: August 11, 2020

Security Bulletin ID SB2013022813
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2012-4542)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

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.


Remediation

Install update from vendor's website.

References