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
CVSS v3 Base Score
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 |