Vulnerability Description
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.0 |
References
- http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0Broken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://www.openwall.com/lists/oss-security/2011/10/24/2Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=747942Issue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4ePatchThird Party Advisory
- http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0Broken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://www.openwall.com/lists/oss-security/2011/10/24/2Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=747942Issue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4ePatchThird Party Advisory
FAQ
What is CVE-2011-3638?
CVE-2011-3638 is a vulnerability with a CVSS score of 4.0 (MEDIUM). fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via...
How severe is CVE-2011-3638?
CVE-2011-3638 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-3638?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.