CVE-2014-8086

Public Exploit

Description

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lkml.org/lkml/2014/10/8/545 mailing list third party advisory exploit
http://www.securityfocus.com/bid/70376 third party advisory vdb entry
http://www.spinics.net/lists/linux-ext4/msg45685.html patch mailing list third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1151353 patch third party advisory issue tracking
http://www.spinics.net/lists/linux-ext4/msg45683.html mailing list third party advisory exploit
http://rhn.redhat.com/errata/RHSA-2015-0694.html third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-0290.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html vendor advisory mailing list third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/96922 third party advisory vdb entry
https://lkml.org/lkml/2014/10/9/129 mailing list third party advisory exploit
http://www.openwall.com/lists/oss-security/2014/10/09/25 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2014-8086?
CVE-2014-8086 has been scored as a medium severity vulnerability.
How to fix CVE-2014-8086?
To fix CVE-2014-8086, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-8086 being actively exploited in the wild?
It is possible that CVE-2014-8086 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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