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ubuntucveUbuntu.comUB:CVE-2014-8086
HistoryOct 13, 2014 - 12:00 a.m.

CVE-2014-8086

2014-10-1300:00:00
ubuntu.com
ubuntu.com
9

4.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

8.2%

Race condition in the ext4_file_write_iter function in fs/ext4/file.c in
the Linux kernel through 3.17 allows local users to cause a denial of
service (file unavailability) via a combination of a write action and an
F_SETFL fcntl operation for the O_DIRECT flag.

Bugs

Notes

Author Note
jdstrand android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support
apw looks like the end if the discussion above on the ext4 list points to changes proposed in https://lkml.org/lkml/2014/10/18/63, unsure if they are sufficient either. this was applied with a different subject line
OSVersionArchitecturePackageVersionFilename
ubuntu14.10noarchlinux< 3.16.0-26.35UNKNOWN
ubuntu14.04noarchlinux-lts-utopic< 3.16.0-26.35~14.04.1UNKNOWN

4.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

8.2%