Incorrect permission assignment for critical resource in Linux kernel - CVE-2009-3939
Published: June 20, 2024
Vulnerability identifier: #VU92835
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2009-3939
CWE-ID: CWE-732
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to damange or delete data.
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 to mitigate CVE-2009-3939
Install update from vendor's repository.
Sources
- https://bugzilla.redhat.com/show_bug.cgi?id=526068
- http://www.openwall.com/lists/oss-security/2009/11/13/1
- http://osvdb.org/60201
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
- http://secunia.com/advisories/37909
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
- http://secunia.com/advisories/38017
- https://rhn.redhat.com/errata/RHSA-2010-0046.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- http://www.debian.org/security/2010/dsa-1996
- http://support.avaya.com/css/P8/documents/100073666
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://secunia.com/advisories/38492
- http://www.ubuntu.com/usn/usn-864-1
- http://www.securityfocus.com/bid/37019
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html
- http://secunia.com/advisories/38276
- http://secunia.com/advisories/38779
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00000.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7540
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10310