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cve[email protected]CVE-2017-18224
HistoryMar 12, 2018 - 3:29 a.m.

CVE-2017-18224

2018-03-1203:29:00
CWE-362
web.nvd.nist.gov
68
linux kernel
4.15
fsocfs2aops.c
race condition
denial of service
cve-2017-18224
nvd

1.9 Low

CVSS2

Attack Vector

LOCAL

Attack 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

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

5.1 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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.

Affected configurations

NVD
Node
linuxlinux_kernelRange<4.15

1.9 Low

CVSS2

Attack Vector

LOCAL

Attack 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

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

5.1 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%