CVE-2018-7740

Name: CVE-2018-7740
Creator: NVD / NIST
Published: 2018-03-07T08:29:00.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.62%

Last modified Jun 17, 2026

CVE-2018-7740 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.62%

45.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 4.15.7
Redhat	Virtualization Host	4.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Workstation	7.0

References

http://www.securityfocus.com/bid/103316Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=199037Exploit, Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3910-1/Third Party Advisory
https://usn.ubuntu.com/3910-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory
http://www.securityfocus.com/bid/103316Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=199037Exploit, Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3910-1/Third Party Advisory
https://usn.ubuntu.com/3910-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory

Timeline

Published: Mar 7, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-7740?

How severe is CVE-2018-7740?

Severity scoring for CVE-2018-7740 is pending analysis. The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2018-7740?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-7740?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST