CVE-2017-1000405

CVE Details

Release Date:

2017-11-30

Description

The Linux Kernel versions 2.6.38 through 4.14 have a problematic useof pmd_mkdirty() in the touch_pmd() function inside the THP implementation. touch_pmd() can be reached by get_user_pages(). In such case, the pmd will become dirty. This scenario breaks the new can_follow_write_pmd()'s logic - pmd can become dirty without going through a COW cycle. This bug is not as severe as the original Dirty

See more information about CVE-2017-1000405 from MITRE CVE dictionary and NIST NVD

CVSS v2.0 metrics

NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.

Base Score:	6.9	Base Metrics:	AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector:	Local network	Attack Complexity:	Medium
Authentication:	None required	Confidentiality Impact:	Complete
Integrity Impact:	Complete	Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3651	2017-12-07
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3651	2017-12-07
Oracle VM version 3.4 (kernel-uek)	OVMSA-2017-0172	2017-12-07

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team