CVE-2017-18224

2018-03-1200:00:00

ubuntu.com

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

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

JSON

In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore
and consequently has a race condition for access to the extent tree during
read operations in DIRECT mode, which allows local users to cause a denial
of service (BUG) by modifying a certain e_cpos field.

OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchlinux-azure< 4.15.0-1013.13~16.04.2UNKNOWN
ubuntu16.04noarchlinux-gcp< 4.15.0-1014.14~16.04.1UNKNOWN
ubuntu16.04noarchlinux-hwe< 4.15.0-24.26~16.04.1UNKNOWN
ubuntu16.04noarchlinux-hwe-edge< 4.15.0-24.26~16.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	16.04	noarch	linux-azure	< 4.15.0-1013.13~16.04.2	UNKNOWN
ubuntu	16.04	noarch	linux-gcp	< 4.15.0-1014.14~16.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-hwe	< 4.15.0-24.26~16.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-hwe-edge	< 4.15.0-24.26~16.04.1	UNKNOWN