Vulnerability Description
The EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite arbitrary files via a crafted request, related to insufficient checks for file permissions.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.6.32 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git%3Ba=commit%3Bh=4a58579b
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
- http://lkml.org/lkml/2009/12/9/255Patch
- http://secunia.com/advisories/37658Vendor Advisory
- http://secunia.com/advisories/37686
- http://secunia.com/advisories/38017
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.32-git6.logPatch
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
- http://www.securityfocus.com/bid/37277Patch
- http://www.theregister.co.uk/2009/12/11/linux_kernel_bugs_patched/
- http://www.ubuntu.com/usn/USN-869-1
- http://www.vupen.com/english/advisories/2009/3468PatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=544471Patch
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00702.h
- http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git%3Ba=commit%3Bh=4a58579b
FAQ
What is CVE-2009-4131?
CVE-2009-4131 is a vulnerability with a CVSS score of 7.2 (HIGH). The EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite arbitrary files via a crafted request, relat...
How severe is CVE-2009-4131?
CVE-2009-4131 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-4131?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.