CVE-2016-4470 : The key_reject_and_link function in security/keys/key.c in the Linux kernel thro

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.

Published 2016-06-27 10:59:09

Updated 2023-02-12 23:21:22

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2016-4470

Novell » Suse Linux Enterprise Real Time Extension » Version: 12.0 Update SP1
cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux » Version: 6.0
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Desktop » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Workstation » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Hpc Node » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Aus » Version: 7.2
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Eus » Version: 7.2
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Hpc Node Eus » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux For Real Time » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_for_real_time:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Mrg » Version: 2.0
cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions up to, including, (<=) 4.6.3
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Oracle » Linux » Version: 7
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*
Matching versions
Oracle » Linux » Version: 6
cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*
Matching versions
Oracle » Linux » Version: 5.0
cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:*
Matching versions
Oracle » Vm Server » Version: 3.3
cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*
Matching versions
Oracle » Vm Server » Version: 3.4
cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-4470

EPSS FAQ

0.05%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 14 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-4470

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.9	MEDIUM	AV:L/AC:L/Au:N/C:N/I:N/A:C	3.9	6.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
5.5	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

References for CVE-2016-4470

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html

[security-announce] SUSE-SU-2016:1961-1: important: Security update for

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-1541.html

RHSA-2016:1541 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html

[security-announce] SUSE-SU-2016:2006-1: important: Security update for

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/15/11

oss-security - CVE-2016-4470: Linux kernel Uninitialized variable in request_key handling user controlled kfree().
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html

[security-announce] SUSE-SU-2016:2000-1: important: Security update for

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html

[security-announce] SUSE-SU-2016:2005-1: important: Security update for

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http://www.securitytracker.com/id/1036763

Google Android Multiple Flaws Let Remote Users Deny Service and Execute Arbitrary Code and Let Applications Obtain Potentially Sensitive Information and Gain Elevated Privileges - SecurityTracker

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http://www.ubuntu.com/usn/USN-3056-1

USN-3056-1: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu security notices

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html

[security-announce] SUSE-SU-2016:2003-1: important: Security update for

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3055-1

USN-3055-1: Linux kernel vulnerabilities | Ubuntu security notices

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3051-1

USN-3051-1: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html

[security-announce] SUSE-SU-2016:2014-1: important: Security update for

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-2074.html

RHSA-2016:2074 - Security Advisory - Red Hat Customer Portal
http://www.ubuntu.com/usn/USN-3050-1

USN-3050-1: Linux kernel (OMAP4) vulnerabilities | Ubuntu security notices

CVEs referencing this url
https://bugzilla.redhat.com/show_bug.cgi?id=1341716

1341716 – (CVE-2016-4470) CVE-2016-4470 kernel: Uninitialized variable in request_key handling causes kernel crash in error handling path
Issue Tracking;Third Party Advisory;VDB Entry
http://rhn.redhat.com/errata/RHSA-2016-2128.html

RHSA-2016:2128 - Security Advisory - Red Hat Customer Portal

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3052-1

USN-3052-1: Linux kernel vulnerabilities | Ubuntu security notices

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html

[security-announce] SUSE-SU-2016:2001-1: important: Security update for

CVEs referencing this url
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

Oracle Linux Bulletin - October 2016

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3057-1

USN-3057-1: Linux kernel (Qualcomm Snapdragon) vulnerabilities | Ubuntu security notices

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00012.html

[security-announce] SUSE-SU-2016:1998-1: important: Security update for
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html

[security-announce] SUSE-SU-2016:1937-1: important: Security update for
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html

[security-announce] SUSE-SU-2016:2010-1: important: Security update for

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html

[security-announce] SUSE-SU-2016:1995-1: important: Security update for

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html

[security-announce] SUSE-SU-2016:2018-1: important: Security update for

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-1539.html

RHSA-2016:1539 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html

[security-announce] SUSE-SU-2016:2002-1: important: Security update for

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html

[security-announce] SUSE-SU-2016:2007-1: important: Security update for

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-2133.html

RHSA-2016:2133 - Security Advisory - Red Hat Customer Portal

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-2006.html

RHSA-2016:2006 - Security Advisory - Red Hat Customer Portal

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html

[security-announce] SUSE-SU-2016:2105-1: important: Security update for

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3049-1

USN-3049-1: Linux kernel vulnerabilities | Ubuntu security notices

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00013.html

[security-announce] SUSE-SU-2016:1999-1: important: Security update for
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html

[security-announce] SUSE-SU-2016:1985-1: important: Security update for

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html

[security-announce] SUSE-SU-2016:1994-1: important: Security update for

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-2076.html

RHSA-2016:2076 - Security Advisory - Red Hat Customer Portal
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html

[security-announce] SUSE-SU-2016:2009-1: important: Security update for

CVEs referencing this url
https://github.com/torvalds/linux/commit/38327424b40bcebe2de92d07312c89360ac9229a

KEYS: potential uninitialized variable · torvalds/linux@3832742 · GitHub
Vendor Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

Oracle VM Server for x86 Bulletin - July 2016
Vendor Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html

[security-announce] openSUSE-SU-2016:2184-1: important: Security update

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3054-1

USN-3054-1: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3053-1

USN-3053-1: Linux kernel (Vivid HWE) vulnerabilities | Ubuntu security notices

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-1532.html

RHSA-2016:1532 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://www.debian.org/security/2016/dsa-3607

Debian -- Security Information -- DSA-3607-1 linux

CVEs referencing this url
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a

kernel/git/torvalds/linux.git - Linux kernel source tree
Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html

[security-announce] SUSE-SU-2016:2011-1: important: Security update for

CVEs referencing this url
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

Oracle Linux Bulletin - July 2016
Third Party Advisory

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-1657.html

RHSA-2016:1657 - Security Advisory - Red Hat Customer Portal

CVEs referencing this url

Jump to

Vulnerability Details : CVE-2016-4470

Products affected by CVE-2016-4470

Exploit prediction scoring system (EPSS) score for CVE-2016-4470

CVSS scores for CVE-2016-4470

References for CVE-2016-4470