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Vulnerability Details : CVE-2016-4470

The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.
Publish Date : 2016-06-27 Last Update Date : 2019-04-22
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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 CWE id is not defined for this vulnerability

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2016:1539: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20161539 unix
RHSA-2016:1541: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20161541 unix
RHSA-2016:2006: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20162006 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-2016-4470

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 4.6.3 Version Details Vulnerabilities
2 OS Novell Suse Linux Enterprise Real Time Extension 12.0 SP1 Version Details Vulnerabilities
3 OS Oracle Linux 5.0 Version Details Vulnerabilities
4 OS Oracle Linux 6.0 Version Details Vulnerabilities
5 OS Oracle Linux 7.0 Version Details Vulnerabilities
6 OS Oracle Vm Server 3.3 Version Details Vulnerabilities
7 OS Oracle Vm Server 3.4 Version Details Vulnerabilities
8 OS Redhat Enterprise Linux 6.0 Version Details Vulnerabilities
9 OS Redhat Enterprise Linux Desktop 7.0 Version Details Vulnerabilities
10 OS Redhat Enterprise Linux For Real Time 7.0 Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Hpc Node 7.0 Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Hpc Node Eus 7.0 Version Details Vulnerabilities
13 OS Redhat Enterprise Linux Server 7.0 Version Details Vulnerabilities
14 OS Redhat Enterprise Linux Server Aus 7.2 Version Details Vulnerabilities
15 OS Redhat Enterprise Linux Server Eus 7.2 Version Details Vulnerabilities
16 OS Redhat Enterprise Linux Workstation 7.0 Version Details Vulnerabilities
17 Application Redhat Enterprise Mrg 2.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1
Novell Suse Linux Enterprise Real Time Extension 1
Oracle Linux 3
Oracle Vm Server 2
Redhat Enterprise Linux 1
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux For Real Time 1
Redhat Enterprise Linux Hpc Node 1
Redhat Enterprise Linux Hpc Node Eus 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Server Aus 1
Redhat Enterprise Linux Server Eus 1
Redhat Enterprise Linux Workstation 1
Redhat Enterprise Mrg 1

- References For CVE-2016-4470

http://www.ubuntu.com/usn/USN-3056-1
UBUNTU USN-3056-1
http://www.ubuntu.com/usn/USN-3049-1
UBUNTU USN-3049-1
https://github.com/torvalds/linux/commit/38327424b40bcebe2de92d07312c89360ac9229a CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1341716 CONFIRM
http://www.ubuntu.com/usn/USN-3057-1
UBUNTU USN-3057-1
http://www.ubuntu.com/usn/USN-3054-1
UBUNTU USN-3054-1
http://www.ubuntu.com/usn/USN-3052-1
UBUNTU USN-3052-1
http://www.ubuntu.com/usn/USN-3053-1
UBUNTU USN-3053-1
http://www.ubuntu.com/usn/USN-3050-1
UBUNTU USN-3050-1
http://www.ubuntu.com/usn/USN-3055-1
UBUNTU USN-3055-1
http://www.securitytracker.com/id/1036763
SECTRACK 1036763
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html CONFIRM
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2076.html
REDHAT RHSA-2016:2076
http://rhn.redhat.com/errata/RHSA-2016-2128.html
REDHAT RHSA-2016:2128
http://rhn.redhat.com/errata/RHSA-2016-2133.html
REDHAT RHSA-2016:2133
http://www.debian.org/security/2016/dsa-3607
DEBIAN DSA-3607
http://www.openwall.com/lists/oss-security/2016/06/15/11
MLIST [oss-security] 20160615 CVE-2016-4470: Linux kernel Uninitialized variable in request_key handling user controlled kfree().
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2074.html
REDHAT RHSA-2016:2074
http://rhn.redhat.com/errata/RHSA-2016-2006.html
REDHAT RHSA-2016:2006
http://rhn.redhat.com/errata/RHSA-2016-1657.html
REDHAT RHSA-2016:1657
http://rhn.redhat.com/errata/RHSA-2016-1541.html
REDHAT RHSA-2016:1541
http://rhn.redhat.com/errata/RHSA-2016-1539.html
REDHAT RHSA-2016:1539
http://rhn.redhat.com/errata/RHSA-2016-1532.html
REDHAT RHSA-2016:1532
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
SUSE openSUSE-SU-2016:2184
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
SUSE SUSE-SU-2016:2105
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html
SUSE SUSE-SU-2016:2018
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html
SUSE SUSE-SU-2016:2014
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html
SUSE SUSE-SU-2016:2011
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html
SUSE SUSE-SU-2016:2010
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html
SUSE SUSE-SU-2016:2009
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html
SUSE SUSE-SU-2016:2007
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html
SUSE SUSE-SU-2016:2006
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html
SUSE SUSE-SU-2016:2005
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html
SUSE SUSE-SU-2016:2003
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html
SUSE SUSE-SU-2016:2002
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html
SUSE SUSE-SU-2016:2000
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html
SUSE SUSE-SU-2016:2001
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00013.html
SUSE SUSE-SU-2016:1999
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00012.html
SUSE SUSE-SU-2016:1998
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html
SUSE SUSE-SU-2016:1995
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
SUSE SUSE-SU-2016:1994
http://www.ubuntu.com/usn/USN-3051-1
UBUNTU USN-3051-1
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
SUSE SUSE-SU-2016:1937
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
SUSE SUSE-SU-2016:1961
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
SUSE SUSE-SU-2016:1985
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a CONFIRM

- Metasploit Modules Related To CVE-2016-4470

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


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