All errata/sisyphus/ALT-PU-2018-1728-1
ALT-PU-2018-1728-1

Package update kernel-image-un-def in branch sisyphus

Version4.16.9-alt1
Task#206454
Published2018-05-17
Max severityMEDIUM
Severity:

Closed issues (2)

CVE-2018-1000200
MEDIUM5.5

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).

Published: 2018-06-05Modified: 2024-11-21
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2018-11508
MEDIUM5.5

The compat_get_timex function in kernel/compat.c in the Linux kernel before 4.16.9 allows local users to obtain sensitive information from kernel memory via adjtimex.

Published: 2018-05-28Modified: 2024-11-21
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:N
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References