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cve[email protected]CVE-2018-7740
HistoryMar 07, 2018 - 8:29 a.m.

CVE-2018-7740

2018-03-0708:29:00
CWE-119
web.nvd.nist.gov
199
cve-2018-7740
linux kernel
denial of service
bug
mmap system calls
remap_file_pages system call

4.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.4 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

The resv_map_release function in mm/hugetlb.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (BUG) via a crafted application that makes mmap system calls and has a large pgoff argument to the remap_file_pages system call.

Affected configurations

NVD
Node
linuxlinux_kernelRange4.15.7
Node
redhatvirtualization_hostMatch4.0
OR
canonicalubuntu_linuxMatch14.04lts
OR
canonicalubuntu_linuxMatch16.04lts
OR
debiandebian_linuxMatch7.0
OR
debiandebian_linuxMatch8.0
OR
debiandebian_linuxMatch9.0
OR
redhatenterprise_linux_desktopMatch7.0
OR
redhatenterprise_linux_serverMatch7.0
OR
redhatenterprise_linux_workstationMatch7.0

4.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.4 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%