CVE-2011-3638

CVE Details

Release Date:	2011-09-28
Impact:	Moderate	What is this?

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.

See more information about CVE-2011-3638 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	4.0
Vector String:	AV:L/AC:H/Au:N/C:N/I:N/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	High
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel)	ELSA-2012-0107	2012-02-09
Oracle Linux version 5 (kernel-uek)	ELSA-2011-2037	2011-12-14
Oracle Linux version 5 (ocfs2-2.6.18-274.18.1.0.1.el5)	ELSA-2012-0107	2012-02-09
Oracle Linux version 5 (ofa-2.6.32-300.3.1.el5uek)	ELSA-2011-2037	2011-12-14
Oracle Linux version 5 (oracleasm-2.6.18-274.18.1.0.1.el5)	ELSA-2012-0107	2012-02-09
Oracle Linux version 6 (kernel)	ELSA-2011-1530	2011-12-14
Oracle Linux version 6 (kernel-uek)	ELSA-2011-2037	2011-12-14
Oracle Linux version 6 (ofa-2.6.32-300.3.1.el6uek)	ELSA-2011-2037	2011-12-14