Vulnerability Monitor

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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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.7, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 2 products from linux, from suse organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2014, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2014-10-13T10:55:09.590

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 4.7 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:N/I:N/A:C

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

6.9

Weaknesses

Type: Primary
CWE-362

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	≤ 3.17	Yes
Operating System	suse	suse_linux_enterprise_server	11	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html Mailing List, Third Party Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2015-0290.html Third Party Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2015-0694.html Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2014/10/09/25 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/70376 Third Party Advisory, VDB Entry ([email protected])
http://www.spinics.net/lists/linux-ext4/msg45683.html Exploit, Mailing List, Third Party Advisory ([email protected])
http://www.spinics.net/lists/linux-ext4/msg45685.html Mailing List, Patch, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1151353 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/96922 Third Party Advisory, VDB Entry ([email protected])
https://lkml.org/lkml/2014/10/8/545 Exploit, Mailing List, Third Party Advisory ([email protected])
https://lkml.org/lkml/2014/10/9/129 Exploit, Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2015-0290.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2015-0694.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2014/10/09/25 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/70376 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.spinics.net/lists/linux-ext4/msg45683.html Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.spinics.net/lists/linux-ext4/msg45685.html Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1151353 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/96922 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://lkml.org/lkml/2014/10/8/545 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lkml.org/lkml/2014/10/9/129 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.