CVE-2014-8559

Public Exploit

Description

The d_walk function in fs/dcache.c in the Linux kernel through 3.17.2 does not properly maintain the semantics of rename_lock, which allows local users to cause a denial of service (deadlock and system hang) via a crafted application.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lkml.org/lkml/2014/10/26/116 mailing list exploit third party advisory
http://www.ubuntu.com/usn/USN-2515-1 third party advisory vendor advisory
https://lkml.org/lkml/2014/10/26/101 third party advisory mailing list
http://www.debian.org/security/2015/dsa-3170 exploit third party advisory patch vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2492-1 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-1978.html third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2014/10/30/7 third party advisory mailing list
http://secunia.com/advisories/62801 third party advisory broken link
http://rhn.redhat.com/errata/RHSA-2015-1976.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html mailing list third party advisory vendor advisory
https://lkml.org/lkml/2014/10/26/128 third party advisory mailing list
http://www.securityfocus.com/bid/70854 vdb entry third party advisory
https://lkml.org/lkml/2014/10/25/179 mailing list third party advisory patch
http://www.ubuntu.com/usn/USN-2518-1 third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html third party advisory
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html mailing list third party advisory vendor advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca5358ef75fc69fee5322a38a340f5739d997c10 mailing list patch vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html mailing list third party advisory vendor advisory
https://lkml.org/lkml/2014/10/26/129 third party advisory mailing list
http://www.ubuntu.com/usn/USN-2493-1 third party advisory vendor advisory
http://www.securitytracker.com/id/1034051 vdb entry third party advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=946e51f2bf37f1656916eb75bd0742ba33983c28 mailing list patch vendor advisory
https://lkml.org/lkml/2014/10/25/180 mailing list third party advisory patch
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2517-1 third party advisory vendor advisory
https://lkml.org/lkml/2014/10/25/171 mailing list exploit third party advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2516-1 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1159313 issue tracking third party advisory patch
https://support.f5.com/csp/article/K05211147 third party advisory

Frequently Asked Questions

What is the severity of CVE-2014-8559?
CVE-2014-8559 has been scored as a medium severity vulnerability.
How to fix CVE-2014-8559?
To fix CVE-2014-8559, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-8559 being actively exploited in the wild?
It is possible that CVE-2014-8559 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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