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Vulnerability Details : CVE-2014-8559

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.
Publish Date : 2014-11-10 Last Update Date : 2020-08-13
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- CVSS Scores & Vulnerability Types

CVSS Score
4.9
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 400

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2015:1977: kernel-rt security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20151977 unix
RHSA-2015:1978: kernel security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20151978 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-8559

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 14.10 * * * Version Details Vulnerabilities
4 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
5 OS Novell Suse Linux Enterprise Desktop 12.0 * * * Version Details Vulnerabilities
6 OS Novell Suse Linux Enterprise Server 12.0 * * * Version Details Vulnerabilities
7 OS Opensuse Evergreen 11.4 * * * Version Details Vulnerabilities
8 OS Opensuse Opensuse 13.1 * * * Version Details Vulnerabilities
9 OS Oracle Linux 7 - * * Version Details Vulnerabilities
10 OS Suse Linux Enterprise Real Time Extension 11 SP3 * * Version Details Vulnerabilities
11 OS Suse Linux Enterprise Software Development Kit 12 - * * Version Details Vulnerabilities
12 OS Suse Linux Enterprise Workstation Extension 12 * * * Version Details Vulnerabilities
13 OS Suse Suse Linux Enterprise Server 11 SP2 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Linux Linux Kernel 1
Novell Suse Linux Enterprise Desktop 1
Novell Suse Linux Enterprise Server 1
Opensuse Evergreen 1
Opensuse Opensuse 1
Oracle Linux 1
Suse Linux Enterprise Real Time Extension 1
Suse Linux Enterprise Software Development Kit 1
Suse Linux Enterprise Workstation Extension 1
Suse Suse Linux Enterprise Server 1

- References For CVE-2014-8559

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=946e51f2bf37f1656916eb75bd0742ba33983c28 CONFIRM
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html CONFIRM
http://www.ubuntu.com/usn/USN-2493-1
UBUNTU USN-2493-1
http://www.securitytracker.com/id/1034051
SECTRACK 1034051
http://rhn.redhat.com/errata/RHSA-2015-1976.html
REDHAT RHSA-2015:1976
http://rhn.redhat.com/errata/RHSA-2015-1978.html
REDHAT RHSA-2015:1978
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca5358ef75fc69fee5322a38a340f5739d997c10 CONFIRM
https://lkml.org/lkml/2014/10/25/180
MLIST [linux-kernel] 20141026 Re: fs: lockup on rename_mutex in fs/dcache.c:1035
https://bugzilla.redhat.com/show_bug.cgi?id=1159313 CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
SUSE openSUSE-SU-2015:0566
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html
SUSE SUSE-SU-2015:0178
https://lkml.org/lkml/2014/10/26/116
MLIST [linux-kernel] 20141026 Re: fs: lockup on rename_mutex in fs/dcache.c:1035
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html
SUSE SUSE-SU-2015:0529
http://www.debian.org/security/2015/dsa-3170
DEBIAN DSA-3170
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
SUSE SUSE-SU-2015:0481
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
SUSE SUSE-SU-2015:0736
http://www.ubuntu.com/usn/USN-2515-1
UBUNTU USN-2515-1
http://www.ubuntu.com/usn/USN-2517-1
UBUNTU USN-2517-1
http://www.ubuntu.com/usn/USN-2516-1
UBUNTU USN-2516-1
http://www.securityfocus.com/bid/70854
BID 70854 Linux Kernel CVE-2014-8559 Local Denial of Service Vulnerability Release Date:2016-01-15
http://secunia.com/advisories/62801
SECUNIA 62801
http://www.ubuntu.com/usn/USN-2518-1
UBUNTU USN-2518-1
http://www.ubuntu.com/usn/USN-2492-1
UBUNTU USN-2492-1
https://lkml.org/lkml/2014/10/25/179
MLIST [linux-kernel] 20141026 Re: fs: lockup on rename_mutex in fs/dcache.c:1035
https://lkml.org/lkml/2014/10/25/171
MLIST [linux-kernel] 20141025 fs: lockup on rename_mutex in fs/dcache.c:1035
https://lkml.org/lkml/2014/10/26/128
MLIST [linux-kernel] 20141026 Re: fs: lockup on rename_mutex in fs/dcache.c:1035
http://www.openwall.com/lists/oss-security/2014/10/30/7
MLIST [oss-security] 20141030 CVE-2014-8559 - Linux kernel fs/dcache.c incorrect use of rename_lock
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
SUSE openSUSE-SU-2015:0714
https://lkml.org/lkml/2014/10/26/101
MLIST [linux-kernel] 20141026 Re: fs: lockup on rename_mutex in fs/dcache.c:1035
https://lkml.org/lkml/2014/10/26/129
MLIST [linux-kernel] 20141026 Re: fs: lockup on rename_mutex in fs/dcache.c:1035
https://support.f5.com/csp/article/K05211147 CONFIRM

- Metasploit Modules Related To CVE-2014-8559

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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