CVE-2012-2100

Public on 2012-07-03
Modified on 2014-09-14
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: this vulnerability exists because of an incomplete fix for CVE-2009-4307.
Severity
Low severity
Low
CVSS v3 Base Score
4.0
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 kernel 2013-01-14 ALAS-2013-148 Fixed
Amazon Linux 1 nvidia 2013-01-14 ALAS-2013-148 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 4.0 AV:L/AC:H/Au:N/C:N/I:N/A:C
NVD CVSSv2 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C