MEDIUM
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.
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.openwall.com/lists/oss-security/2014/10/09/25
http://www.securityfocus.com/bid/70376
http://www.spinics.net/lists/linux-ext4/msg45683.html
http://www.spinics.net/lists/linux-ext4/msg45685.html
https://bugzilla.redhat.com/show_bug.cgi?id=1151353
https://exchange.xforce.ibmcloud.com/vulnerabilities/96922
Source: MITRE
Published: 2014-10-13
Updated: 2020-08-14
Type: CWE-362
Base Score: 4.7
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.4
Severity: MEDIUM
Base Score: 4.7
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1
Severity: MEDIUM