CVE-2011-3638

MEDIUM

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.

References

http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3

http://www.openwall.com/lists/oss-security/2011/10/24/2

https://bugzilla.redhat.com/show_bug.cgi?id=747942

https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3

Details

Source: MITRE

Published: 2013-03-01

Updated: 2013-03-04

Risk Information

CVSS v2.0

Base Score: 4

Vector: AV:L/AC:H/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 1.9

Severity: MEDIUM