ID |
CVE-2018-1000200
|
Summary |
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). |
References |
|
Vulnerable Configurations |
-
cpe:2.3:o:linux:linux_kernel:4.14:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:*:*:*:*:*:*:*
-
cpe:2.3:o:linux:linux_kernel:4.15:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.15:*:*:*:*:*:*:*
-
cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*
|
CVSS |
Base: | 4.9 (as of 31-10-2018 - 10:30) |
Impact: | |
Exploitability: | |
|
CWE |
CWE-476 |
CAPEC |
|
Access |
Vector | Complexity | Authentication |
LOCAL |
LOW |
NONE |
|
Impact |
Confidentiality | Integrity | Availability |
NONE |
NONE |
COMPLETE |
|
cvss-vector
via4
|
AV:L/AC:L/Au:N/C:N/I:N/A:C
|
redhat
via4
|
advisories | | rpms | - kernel-0:4.14.0-115.el7a
- kernel-abi-whitelists-0:4.14.0-115.el7a
- kernel-bootwrapper-0:4.14.0-115.el7a
- kernel-debug-0:4.14.0-115.el7a
- kernel-debug-debuginfo-0:4.14.0-115.el7a
- kernel-debug-devel-0:4.14.0-115.el7a
- kernel-debuginfo-0:4.14.0-115.el7a
- kernel-debuginfo-common-aarch64-0:4.14.0-115.el7a
- kernel-debuginfo-common-ppc64le-0:4.14.0-115.el7a
- kernel-debuginfo-common-s390x-0:4.14.0-115.el7a
- kernel-devel-0:4.14.0-115.el7a
- kernel-doc-0:4.14.0-115.el7a
- kernel-headers-0:4.14.0-115.el7a
- kernel-kdump-0:4.14.0-115.el7a
- kernel-kdump-debuginfo-0:4.14.0-115.el7a
- kernel-kdump-devel-0:4.14.0-115.el7a
- kernel-tools-0:4.14.0-115.el7a
- kernel-tools-debuginfo-0:4.14.0-115.el7a
- kernel-tools-libs-0:4.14.0-115.el7a
- kernel-tools-libs-devel-0:4.14.0-115.el7a
- perf-0:4.14.0-115.el7a
- perf-debuginfo-0:4.14.0-115.el7a
- python-perf-0:4.14.0-115.el7a
- python-perf-debuginfo-0:4.14.0-115.el7a
|
|
refmap
via4
|
bid | 104397 | confirm | | mlist | - [linux-kernel] 20180417 [patch] mm, oom: fix concurrent munlock and oom reaper unmap
- [linux-kernel] 20180424 [patch v3 for-4.17] mm, oom: fix concurrent munlock and oom reaper unmap
- [oss-security] 20180424 CVE-2018-1000200 (Linux): Bad memory access on oom kill of large mlocked process
| ubuntu | - USN-3752-1
- USN-3752-2
- USN-3752-3
|
|
Last major update |
31-10-2018 - 10:30 |
Published |
05-06-2018 - 13:29 |
Last modified |
31-10-2018 - 10:30 |