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CVE Database

CVE-2009-3889

Impact: Moderate
Public: 2009-09-28
Bugzilla: 526068: CVE-2009-3889 CVE-2009-3939 kernel: megaraid_sas permissions in sysfs
IAVA: 2010-A-0015

Details

The MITRE CVE dictionary describes this issue as:

The dbg_lvl file for the megaraid_sas driver in the Linux kernel before 2.6.27 has world-writable permissions, which allows local users to change the (1) behavior and (2) logging level of the driver by modifying this file.

Find out more about CVE-2009-3889 from the MITRE CVE dictionary and NIST NVD.

Statement

This issue did not affect the version of the Linux kernel as shipped with Red Hat Enterprise Linux 3, as it does not implement the sysfs file system ("/sys/"), through which dbg_lvl file is exposed by the megaraid_sas driver.

Issue was addressed in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2010-0076.html , https://rhn.redhat.com/errata/RHSA-2010-0046.html and https://rhn.redhat.com/errata/RHSA-2009-1635.html respectively.

CVSS v2 metrics

Base Score: 3.6
Base Metrics: AV:L/AC:L/Au:N/C:N/I:P/A:P
Access Vector: Local
Access Complexity: Low
Authentication: None
Confidentiality Impact: None
Integrity Impact: Partial
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2009:1635 December 03, 2009
Red Hat Enterprise Linux version 4 (kernel) RHSA-2010:0076 February 02, 2010
Red Hat Enterprise Linux version 5 (kernel) RHSA-2010:0046 January 19, 2010

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.