CVE-2018-1000200
Summary
| CVE | CVE-2018-1000200 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-06-05 13:29:00 UTC |
| Updated | 2018-10-31 10:30:00 UTC |
| 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). |
Risk And Classification
Problem Types: CWE-476
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | 4.14 | All | All | All |
| Operating System | Linux | Linux Kernel | 4.15 | All | All | All |
| Operating System | Linux | Linux Kernel | 4.16 | All | All | All |
| Operating System | Linux | Linux Kernel | 4.14 | All | All | All |
| Operating System | Linux | Linux Kernel | 4.15 | All | All | All |
| Operating System | Linux | Linux Kernel | 4.16 | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| USN-3752-1: Linux kernel vulnerabilities | Ubuntu security notices | Ubuntu | UBUNTU | usn.ubuntu.com | |
| '[patch] mm, oom: fix concurrent munlock and oom reaper unmap' - MARC | MLIST | marc.info | Mailing List, Third Party Advisory |
| '[patch v3 for-4.17] mm, oom: fix concurrent munlock and oom reaper unmap' - MARC | MLIST | marc.info | Mailing List, Third Party Advisory |
| CVE-2018-1000200 - Red Hat Customer Portal | CONFIRM | access.redhat.com | Third Party Advisory |
| USN-3752-2: Linux kernel (HWE) vulnerabilities | Ubuntu security notices | Ubuntu | UBUNTU | usn.ubuntu.com | |
| oss-sec: CVE-2018-1000200 (Linux): Bad memory access on oom kill of large mlocked process | MLIST | seclists.org | Mailing List, Third Party Advisory |
| Linux Kernel CVE-2018-1000200 Local Denial of Service Vulnerability | BID | www.securityfocus.com | Third Party Advisory, VDB Entry |
| USN-3752-3: Linux kernel (Azure, GCP, OEM) vulnerabilities | Ubuntu security notices | Ubuntu | UBUNTU | usn.ubuntu.com | |
| kernel/git/torvalds/linux.git - Linux kernel source tree | CONFIRM | git.kernel.org | Mitigation, Patch, Vendor Advisory |
| Red Hat Customer Portal | REDHAT | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.