CVE-2009-4307

CVE Details

Release Date:

2009-12-13

Description

The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a denial of service (divide-by-zero error and panic) via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).

See more information about CVE-2009-4307 from MITRE CVE dictionary and NIST NVD

CVSS v2.0 metrics

NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.

Base Score:	7.1	Base Metrics:	AV:N/AC:M/Au:N/C:N/I:N/A:C
Access Vector:	Network	Attack Complexity:	Medium
Authentication:	None required	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel)	ELSA-2010-0178	2010-04-05
Oracle Linux version 5 (ocfs2-2.6.18-194.el5)	ELSA-2010-0178	2010-04-05
Oracle Linux version 5 (oracleasm-2.6.18-194.el5)	ELSA-2010-0178	2010-04-05

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team