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.
Published 2009-11-16 19:30:01
Updated 2023-02-13 02:20:34
Source Red Hat, Inc.
View at NVD,   CVE.org

Products affected by CVE-2009-3889

Threat overview for CVE-2009-3889

Top countries where our scanners detected CVE-2009-3889
Top open port discovered on systems with this issue 52869
IPs affected by CVE-2009-3889 210,469
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2009-3889!
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Exploit prediction scoring system (EPSS) score for CVE-2009-3889

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-3889

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.6
MEDIUM AV:L/AC:L/Au:N/C:N/I:C/A:C
3.9
9.2
NIST

CWE ids for CVE-2009-3889

  • Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2009-3889

  • Red Hat 2010-02-04
    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.

References for CVE-2009-3889

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