CVE-2009-3939
HIGHCVSS 7.1/10EPSS 0.44%
Last modified
CVE-2009-3939 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | <= 2.6.31.6 | — |
| Redhat | Virtualization | 5 | — |
| Redhat | Enterprise Linux Desktop | 5.0 | — |
| Redhat | Enterprise Linux Eus | 5.4 | — |
| Redhat | Enterprise Linux Server | 5.0 | — |
| Redhat | Enterprise Linux Workstation | 5.0 | — |
| Canonical | Ubuntu Linux | 6.06 | — |
| Canonical | Ubuntu Linux | 8.04 | — |
| Canonical | Ubuntu Linux | 8.10 | — |
| Canonical | Ubuntu Linux | 9.04 | — |
| Canonical | Ubuntu Linux | 9.10 | — |
| Debian | Debian Linux | 5.0 | — |
| Avaya | Aura Application Enablement Services | 5.2 | — |
| Avaya | Aura Application Enablement Services | 5.2.1 | — |
| Avaya | Aura Communication Manager | 5.2 | — |
| Avaya | Aura Session Manager | 1.1 | — |
| Avaya | Aura Session Manager | 5.2 | — |
| Avaya | Aura Sip Enablement Services | 5.2 | — |
| Avaya | Aura System Manager | 5.2 | — |
| Avaya | Aura System Manager | 6.0 | — |
| Avaya | Aura System Platform | 1.1 | — |
| Avaya | Voice Portal | 5.0 | — |
| Opensuse | Opensuse | 11.0 | — |
| Opensuse | Opensuse | 11.1 | — |
| Opensuse | Opensuse | 11.2 | — |
| Suse | Linux Enterprise Desktop | 10 | Sp3 |
| Suse | Linux Enterprise Desktop | 11 | — |
| Suse | Linux Enterprise Server | 10 | Sp3 |
| Suse | Linux Enterprise Server | 11 | — |
References
- http://osvdb.org/60201Broken Link
- http://secunia.com/advisories/37909Broken Link
- http://secunia.com/advisories/38017Broken Link
- http://secunia.com/advisories/38276Broken Link
- http://secunia.com/advisories/38492Broken Link
- http://secunia.com/advisories/38779Broken Link
- http://support.avaya.com/css/P8/documents/100073666Third Party Advisory
- http://www.debian.org/security/2010/dsa-1996Third Party Advisory
- http://www.securityfocus.com/bid/37019Broken Link, Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/usn-864-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=526068Exploit, Issue Tracking
- https://rhn.redhat.com/errata/RHSA-2010-0046.htmlThird Party Advisory
- https://rhn.redhat.com/errata/RHSA-2010-0095.htmlThird Party Advisory
- http://osvdb.org/60201Broken Link
- http://secunia.com/advisories/37909Broken Link
- http://secunia.com/advisories/38017Broken Link
- http://secunia.com/advisories/38276Broken Link
- http://secunia.com/advisories/38492Broken Link
- http://secunia.com/advisories/38779Broken Link
- http://support.avaya.com/css/P8/documents/100073666Third Party Advisory
- http://www.debian.org/security/2010/dsa-1996Third Party Advisory
- http://www.securityfocus.com/bid/37019Broken Link, Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/usn-864-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=526068Exploit, Issue Tracking
- https://rhn.redhat.com/errata/RHSA-2010-0046.htmlThird Party Advisory
- https://rhn.redhat.com/errata/RHSA-2010-0095.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2009-3939?
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.
How severe is CVE-2009-3939?
CVE-2009-3939 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.
How do I fix CVE-2009-3939?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2009-3939?
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