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ubuntucveUbuntu.comUB:CVE-2009-4307
HistoryDec 13, 2009 - 12:00 a.m.

CVE-2009-4307

2009-12-1300:00:00
ubuntu.com
ubuntu.com
11

CVSS2

7.1

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

EPSS

0.029

Percentile

90.8%

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).

CVSS2

7.1

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

EPSS

0.029

Percentile

90.8%