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CVE-2016-4470

Good to know:

Date: June 27, 2016

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.

Language: C

Severity Score

5.5

Related Resources (53)

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html

Url: https://access.redhat.com/security/cve/CVE-2016-4470

Url: http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2016-4470

Url: http://rhn.redhat.com/errata/RHSA-2016-1657.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html

Url: http://rhn.redhat.com/errata/RHSA-2016-2076.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00012.html

Url: http://rhn.redhat.com/errata/RHSA-2016-2006.html

Url: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html

Url: https://security-tracker.debian.org/tracker/CVE-2016-4470

Url: http://rhn.redhat.com/errata/RHSA-2016-2133.html

Url: http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html

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

Url: http://rhn.redhat.com/errata/RHSA-2016-2128.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html

Url: http://www.ubuntu.com/usn/USN-3050-1

Url: http://www.ubuntu.com/usn/USN-3052-1

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

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html

Url: http://www.ubuntu.com/usn/USN-3054-1

Url: http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

Url: http://rhn.redhat.com/errata/RHSA-2016-1532.html

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

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html

Url: http://www.debian.org/security/2016/dsa-3607

Url: http://rhn.redhat.com/errata/RHSA-2016-2074.html

Url: https://github.com/torvalds/linux/commit/38327424b40bcebe2de92d07312c89360ac9229a

Url: https://nvd.nist.gov/vuln/detail/CVE-2016-4470

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html

Url: http://www.ubuntu.com/usn/USN-3049-1

Url: http://www.openwall.com/lists/oss-security/2016/06/15/11

Url: http://rhn.redhat.com/errata/RHSA-2016-1539.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html

Url: http://rhn.redhat.com/errata/RHSA-2016-1541.html

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1341716

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html

Url: http://www.ubuntu.com/usn/USN-3051-1

Url: http://www.ubuntu.com/usn/USN-3053-1

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00013.html

Url: http://www.ubuntu.com/usn/USN-3055-1

Url: http://www.ubuntu.com/usn/USN-3057-1

Url: https://www.mend.io/vulnerability-database/CVE-2016-4470

Severity Score

5.5

Top Fix

Upgrade Version

Upgrade to version v4.7-rc4

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.9
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	COMPLETE
Additional information:

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