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CVE-2018-7740

Date: March 7, 2018

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.

Language: C

Severity Score

Related Resources (14)

https://usn.ubuntu.com/3910-1/
https://usn.ubuntu.com/3910-2/
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
https://www.debian.org/security/2018/dsa-4187
https://security-tracker.debian.org/tracker/CVE-2018-7740
https://www.debian.org/security/2018/dsa-4188
https://access.redhat.com/security/cve/CVE-2018-7740
https://access.redhat.com/errata/RHSA-2018:3096
https://access.redhat.com/errata/RHSA-2018:3083
http://www.securityfocus.com/bid/103316
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-7740
https://nvd.nist.gov/vuln/detail/CVE-2018-7740
https://bugzilla.kernel.org/show_bug.cgi?id=199037
https://www.mend.io/vulnerability-database/CVE-2018-7740

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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