CVE-2009-2849

Impact:
Moderate
Public Date:
2009-07-01
CWE:
CWE-476
Bugzilla:
518132: CVE-2009-2849 kernel: md: NULL pointer deref when accessing suspend_* sysfs attributes

The MITRE CVE dictionary describes this issue as:

The md driver (drivers/md/md.c) in the Linux kernel before 2.6.30.2 might allow local users to cause a denial of service (NULL pointer dereference) via vectors related to "suspend_* sysfs attributes" and the (1) suspend_lo_store or (2) suspend_hi_store functions. NOTE: this is only a vulnerability when sysfs is writable by an attacker.

Find out more about CVE-2009-2849 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-2849

The flaw was introduced in kernel version 2.6.17-rc1. The Linux kernel as shipped with Red Hat Enterprise Linux 3, and 4 are not affected by this issue.

It was addressed in Red Hat Enterprise MRG via: https://rhn.redhat.com/errata/RHSA-2009-1540.html

A future kernel update for Red Hat Enterprise Linux 5 will address this flaw.

CVSS v2 metrics

Base Score 6.2
Base Metrics AV:L/AC:H/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity High
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete

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-2009:1540 2009-11-03
Red Hat Enterprise Linux 5 (kernel) RHSA-2009:1455 2009-09-29

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

For clarification or corrections please contact Red Hat Product Security.

Last Modified

CVE description copyright © 2017, The MITRE Corporation

Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.