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CVE-2017-14340

Date: September 15, 2017

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.

Language: C

Severity Score

Related Resources (12)

https://nvd.nist.gov/vuln/detail/CVE-2017-14340
http://www.debian.org/security/2017/dsa-3981
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b31ff3cdf540110da4572e3e29bd172087af65cc
http://www.securityfocus.com/bid/100851
https://bugzilla.redhat.com/show_bug.cgi?id=1491344
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.2
https://access.redhat.com/errata/RHSA-2017:2918
https://github.com/torvalds/linux/commit/b31ff3cdf540110da4572e3e29bd172087af65cc
https://security-tracker.debian.org/tracker/CVE-2017-14340
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-14340
http://seclists.org/oss-sec/2017/q3/436
https://www.mend.io/vulnerability-database/CVE-2017-14340

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
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

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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