National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-1000200 Detail

Description

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).

Source:  MITRE
Description Last Modified:  06/05/2018

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Hyperlink Resource
http://seclists.org/oss-sec/2018/q2/67
http://www.securityfocus.com/bid/104397
https://access.redhat.com/security/cve/cve-2018-1000200
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=27ae357fa82be5ab73b2ef8d39dcb8ca2563483a
https://marc.info/?l=linux-kernel&m=152400522806945
https://marc.info/?l=linux-kernel&m=152460926619256

Technical Details

Vulnerability Type (View All)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-1000200
NVD Published Date:
06/05/2018
NVD Last Modified:
06/07/2018