the ultimate security vulnerability data source
(e.g.: CVE-2009-1234 or 2010-1234 or 20101234)
Log In   Register
  Take a third party risk management course for FREE
Vulnerability Feeds & WidgetsNew  

Vulnerability Details : CVE-2014-8086

Race condition in the ext4_file_write_iter function in fs/ext4/file.c in the Linux kernel through 3.17 allows local users to cause a denial of service (file unavailability) via a combination of a write action and an F_SETFL fcntl operation for the O_DIRECT flag.
Publish Date : 2014-10-13 Last Update Date : 2020-08-14
Search Twitter   Search YouTube   Search Google

- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 362

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2015:0290: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20150290 unix
USN-2447-1 -- Linux kernel (Utopic HWE) vulnerabilities oval:org.mitre.oval:def:28556 unix
USN-2447-2 -- Linux kernel (Utopic HWE) regression oval:org.mitre.oval:def:27960 unix
USN-2448-1 -- Linux kernel vulnerabilities oval:org.mitre.oval:def:28611 unix
USN-2448-2 -- Linux kernel regression oval:org.mitre.oval:def:28608 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-8086

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
2 OS Suse Suse Linux Enterprise Server 11 SP2 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1
Suse Suse Linux Enterprise Server 1

- References For CVE-2014-8086
MLIST [oss-security] 20141009 CVE-2014-8086 - Linux kernel ext4 race condition
XF linux-kernel-cve20148086-dos(96922)
REDHAT RHSA-2015:0694
REDHAT RHSA-2015:0290
BID 70376 Linux Kernel 'ext4/file.c' Local Denial of Service Vulnerability Release Date:2014-12-24
MLIST [linux-ext4] 20141009 [PATCH] ext4: fix race between write and fcntl(F_SETFL)
MLIST [linux-kernel] 20141008 ext4: kernel BUG at fs/ext4/inode.c:2959!
MLIST [linux-ext4] 20141009 [PATCH] add aio/dio regression test race between write and fcntl CONFIRM
MLIST [linux-kernel] 20141009 Re: ext4: kernel BUG at fs/ext4/inode.c:2959!
SUSE SUSE-SU-2015:1478

- Metasploit Modules Related To CVE-2014-8086

There are not any metasploit modules related to this CVE entry (Please visit for more information)

CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site. OVAL is a registered trademark of The MITRE Corporation and the authoritative source of OVAL content is MITRE's OVAL web site.
Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.