CVE-2018-1000200

Source
https://nvd.nist.gov/vuln/detail/CVE-2018-1000200
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000200.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-1000200
Related
Published
2018-06-05T13:29:00Z
Modified
2024-09-18T01:00:21Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

The Linux Kernel versions 4.14, 4.15, and 4.16 has a null pointer dereference which can result in an out of memory (OOM) killing of large mlocked processes. The issue arises from an oom killed process's final thread calling exitmmap(), which calls munlockvmapagesall() for mlocked vmas.This can happen synchronously with the oom reaper's unmappagerange() since the vma's VM_LOCKED bit is cleared before munlocking (to determine if any other vmas share the memory and are mlocked).

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.16.12-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.16.12-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.16.12-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}