National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-16994 Detail

Current Description

The walk_hugetlb_range function in mm/pagewalk.c in the Linux kernel before 4.14.2 mishandles holes in hugetlb ranges, which allows local users to obtain sensitive information from uninitialized kernel memory via crafted use of the mincore() system call.

Source:  MITRE
Description Last Modified:  11/27/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 2.1 LOW
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=373c4557d2aa362702c4c2d41288fb1e54990b7c Patch
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.2 Release Notes
http://www.securityfocus.com/bid/101969 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:0502
https://bugs.chromium.org/p/project-zero/issues/detail?id=1431 Exploit Issue Tracking Patch
https://github.com/torvalds/linux/commit/373c4557d2aa362702c4c2d41288fb1e54990b7c Patch
https://usn.ubuntu.com/3617-1/
https://usn.ubuntu.com/3617-2/
https://usn.ubuntu.com/3617-3/
https://usn.ubuntu.com/3619-1/
https://usn.ubuntu.com/3619-2/
https://usn.ubuntu.com/3632-1/
https://www.exploit-db.com/exploits/43178/ Exploit Third Party Advisory VDB Entry

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
4.14.2


Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-16994
NVD Published Date:
11/27/2017
NVD Last Modified:
04/24/2018