National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-14340 Detail

Current Description

The XFS_IS_REALTIME_INODE macro in fs/xfs/xfs_linux.h in the Linux kernel before 4.13.2 does not verify that a filesystem has a realtime device, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via vectors related to setting an RHINHERIT flag on a directory.

Source:  MITRE
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:N/I:N/A:H (V3.0 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): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.9 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

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=b31ff3cdf540110da4572e3e29bd172087af65cc Issue Tracking Patch Third Party Advisory
http://seclists.org/oss-sec/2017/q3/436 Mailing List Mitigation Patch Third Party Advisory
http://www.debian.org/security/2017/dsa-3981
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.2 Release Notes Vendor Advisory
http://www.securityfocus.com/bid/100851 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2918
https://bugzilla.redhat.com/show_bug.cgi?id=1491344 Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/b31ff3cdf540110da4572e3e29bd172087af65cc Issue Tracking Patch Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

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 (including)
4.13.1


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-14340
NVD Published Date:
09/15/2017
NVD Last Modified:
12/06/2017