The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file.
Published 2009-11-16 19:30:01
Updated 2024-01-25 21:37:48
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2009-3939

Threat overview for CVE-2009-3939

Top countries where our scanners detected CVE-2009-3939
Top open port discovered on systems with this issue 52869
IPs affected by CVE-2009-3939 240,779
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2009-3939!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2009-3939

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-2009-3939

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
7.1
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
1.8
5.2
NIST 2024-01-25

CWE ids for CVE-2009-3939

Vendor statements for CVE-2009-3939

  • 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 poll_mode_io 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-2009-3939

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