Vulnerability Details : CVE-2014-8086
Potential exploit
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.
Vulnerability category: Denial of service
Products affected by CVE-2014-8086
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp2:*:*:ltss:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2014-8086
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2014-8086
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.7
|
MEDIUM | AV:L/AC:M/Au:N/C:N/I:N/A:C |
3.4
|
6.9
|
NIST | |
|
4.7
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.0
|
3.6
|
NIST |
CWE ids for CVE-2014-8086
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-8086
-
http://www.spinics.net/lists/linux-ext4/msg45685.html
[PATCH] add aio/dio regression test race between write and fcntl V2 (Linux Ext4)Mailing List;Patch;Third Party Advisory
-
http://www.spinics.net/lists/linux-ext4/msg45683.html
[PATCH] ext4: fix race between write and fcntl(F_SETFL) (Linux Ext4)Exploit;Mailing List;Third Party Advisory
-
http://rhn.redhat.com/errata/RHSA-2015-0694.html
RHSA-2015:0694 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2014/10/09/25
oss-security - CVE-2014-8086 - Linux kernel ext4 race conditionMailing List;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1151353
1151353 – (CVE-2014-8086) CVE-2014-8086 Kernel: fs: ext4 race conditionIssue Tracking;Patch;Third Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
[security-announce] SUSE-SU-2015:1478-1: important: Security update forMailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/70376
Linux Kernel 'ext4/file.c' Local Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://lkml.org/lkml/2014/10/8/545
LKML: Sasha Levin: ext4: kernel BUG at fs/ext4/inode.c:2959!Exploit;Mailing List;Third Party Advisory
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http://rhn.redhat.com/errata/RHSA-2015-0290.html
RHSA-2015:0290 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/96922
Linux Kernel ext4/file.c denial of service CVE-2014-8086 Vulnerability ReportThird Party Advisory;VDB Entry
-
https://lkml.org/lkml/2014/10/9/129
LKML: Dmitry Monakhov: Re: ext4: kernel BUG at fs/ext4/inode.c:2959!Exploit;Mailing List;Third Party Advisory
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