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CVE Record

CVE-2018-1000200: The Linux Kernel versions 4.14, 4.15, and 4.16 has a null pointer dereference which can result in an out of...

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).

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is a Linux kernel denial-of-service issue. Under specific memory-pressure conditions involving large locked-memory processes, the kernel can hit a null pointer dereference while cleaning up an OOM-killed process. The public bundle does not show active exploitation or a remote attack path. Exposure is most relevant for systems running affected 4.14-4.16 kernels or vendor builds covered by Ubuntu and Red Hat advisories, especially hosts where large mlocked processes can be OOM-killed. Treat as a patch-management and stability risk, not an emergency remote-compromise issue based on available evidence. Prioritize affected Linux servers where memory pressure could disrupt business workloads. Mitigation focus: Apply vendor kernel updates from Ubuntu, Red Hat, or your Linux distributor.; Reboot systems so the fixed kernel is actually running.; Track the upstream kernel fix commit referenced in the source bundle..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0Timeline events
0ADP providers
9Source links

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Source materials

Affected products

Products and packages named in the record

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