CVE-2012-2100

CVE Details

Release Date:

2012-01-10

Description

The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE

See more information about CVE-2012-2100 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:	4	Base Metrics:	AV:L/AC:H/Au:N/C:N/I:N/A:C
Access Vector:	Local network	Attack Complexity:	High
Authentication:	None required	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel)	ELSA-2012-1445	2012-11-13
Oracle Linux version 5 (kernel)	ELSA-2012-1445-1	2012-11-13
Oracle Linux version 5 (kernel-uek)	ELSA-2012-2048	2012-12-20
Oracle Linux version 5 (mlnx_en-2.6.32-300.39.2.el5uek)	ELSA-2012-2048	2012-12-20
Oracle Linux version 5 (ocfs2-2.6.18-308.20.1.0.1.el5)	ELSA-2012-1445-1	2012-11-13
Oracle Linux version 5 (ocfs2-2.6.18-308.20.1.el5)	ELSA-2012-1445	2012-11-13
Oracle Linux version 5 (ofa-2.6.32-300.39.2.el5uek)	ELSA-2012-2048	2012-12-20
Oracle Linux version 5 (oracleasm-2.6.18-308.20.1.0.1.el5)	ELSA-2012-1445-1	2012-11-13
Oracle Linux version 5 (oracleasm-2.6.18-308.20.1.el5)	ELSA-2012-1445	2012-11-13
Oracle Linux version 6 (kernel)	ELSA-2012-1580	2012-12-19
Oracle Linux version 6 (kernel-uek)	ELSA-2012-2048	2012-12-20
Oracle Linux version 6 (mlnx_en-2.6.32-300.39.2.el6uek)	ELSA-2012-2048	2012-12-20
Oracle Linux version 6 (ofa-2.6.32-300.39.2.el6uek)	ELSA-2012-2048	2012-12-20

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