What is CVE-2018-1000200?

CVE-2018-1000200 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2018-1000200 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-1000200?

CVE-2018-1000200 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2018-1000200?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-1000200 patch availability.

Is CVE-2018-1000200 actively exploited?

CVE-2018-1000200 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2018-1000200

Medium

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 exit_mmap(), which calls munlock_vma_pages_all() for mlocked vmas.This can happen synchronously with the oom reaper's unmap_page_range() since the vma's VM_LOCKED bit is cleared before munlocking (to determine if any other vmas share the memory and are mlocked).

Package Linux Kernel

Published 2018-06-05

Last modified 2024-11-21

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2018-1000200 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

10 total

Kernel Git
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=27ae357fa82be5ab73b2ef8d39dcb8ca2563483a

Mitigation Patch Vendor Advisory
Seclists
http://seclists.org/oss-sec/2018/q2/67

Mailing List Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/104397

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2018:2948
Red Hat
https://access.redhat.com/security/cve/cve-2018-1000200

Third Party Advisory

Showing 5 of 10 references View all on NVD

Details

CVE ID CVE-2018-1000200

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2018-06-05

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-1000200?

CVE-2018-1000200 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2018-1000200 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-1000200?

CVE-2018-1000200 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2018-1000200?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-1000200 patch availability.
Is CVE-2018-1000200 actively exploited?

No. CVE-2018-1000200 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.