Home/CVE/Race condition in the ext4_file_write_iter function in fs/ext4/file.c in the Linux kernel through 3.17 allows local user
CVE

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 user

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.

MEDIUM · CVSS 4.7 EPSS 0.00036
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
▤

Affected Products & Versions

2
linux kernel<= 3.17
suse linux enterprise serverall versions
⚠

Public Exploits & PoCs

3
pocwww.spinics.net · msg45683.htmlwww.spinics.net
poclkml.org · 8/545lkml.org
poclkml.org · 9/129lkml.org
▣

Scoring & Timeline

4.7
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Oct 2014 · 10:55 AM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

11
suse-csafSUSE-SU-2015:1478-1
suse-csafSUSE-SU-2015:1071-1
rhsaRHSA-2015:0290Important
rhsaRHSA-2015:0694Important
usnUSN-2448-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.htmlMailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0290.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0694.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2014/10/09/25Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/70376Third Party AdvisoryVDB Entry
http://www.spinics.net/lists/linux-ext4/msg45685.htmlMailing ListPatchThird Party Advisory
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