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CVE-2014-8086

Date: October 13, 2014

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.

Language: C

Severity Score

Related Resources (15)

https://nvd.nist.gov/vuln/detail/CVE-2014-8086
http://www.securityfocus.com/bid/70376
http://www.spinics.net/lists/linux-ext4/msg45685.html
https://lkml.org/lkml/2014/10/9/129
https://exchange.xforce.ibmcloud.com/vulnerabilities/96922
https://people.canonical.com/~ubuntu-security/cve/CVE-2014-8086
https://lkml.org/lkml/2014/10/8/545
https://bugzilla.redhat.com/show_bug.cgi?id=1151353
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
http://rhn.redhat.com/errata/RHSA-2015-0290.html
http://rhn.redhat.com/errata/RHSA-2015-0694.html
http://www.spinics.net/lists/linux-ext4/msg45683.html
https://access.redhat.com/security/cve/CVE-2014-8086
http://www.openwall.com/lists/oss-security/2014/10/09/25
https://www.mend.io/vulnerability-database/CVE-2014-8086

Severity Score

Weakness Type (CWE)

Race Conditions

CWE-362

CVSS v3.1

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

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