Vulnerability Details : CVE-2016-4565

The InfiniBand (aka IB) stack in the Linux kernel before 4.5.3 incorrectly relies on the write system call, which allows local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a uAPI interface.
Publish Date : 2016-05-23 Last Update Date : 2018-01-04

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- CVSS Scores & Vulnerability Types

CVSS Score	7.2
Confidentiality Impact	Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact	Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
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	264

- Related OVAL Definitions

Title	Definition Id	Family
RHSA-2016:1277: kernel security and bug fix update (Important)	oval:com.redhat.rhsa:def:20161277	unix
RHSA-2016:1301: kernel-rt security, bug fix, and enhancement update (Important)	oval:com.redhat.rhsa:def:20161301	unix
RHSA-2016:1406: kernel security and bug fix update (Important)	oval:com.redhat.rhsa:def:20161406	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-2016-4565

#	Product Type	Vendor	Product	Version	Update	Edition	Language
1	OS	Linux	Linux Kernel	4.5.2				Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor	Product	Vulnerable Versions
Linux	Linux Kernel	1

- References For CVE-2016-4565

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
SUSE openSUSE-SU-2016:1641

https://access.redhat.com/errata/RHSA-2016:1277
REDHAT RHSA-2016:1277

https://access.redhat.com/errata/RHSA-2016:1301
REDHAT RHSA-2016:1301

http://www.openwall.com/lists/oss-security/2016/05/07/1
MLIST [oss-security] 20160507 CVE Request: Linux: IB/security: Restrict use of the write() interface'

https://access.redhat.com/errata/RHSA-2016:1406
REDHAT RHSA-2016:1406

https://bugzilla.redhat.com/show_bug.cgi?id=1310570 CONFIRM

https://access.redhat.com/errata/RHSA-2016:1341
REDHAT RHSA-2016:1341

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e6bd18f57aad1a2d1ef40e646d03ed0f2515c9e3 CONFIRM

http://www.ubuntu.com/usn/USN-3021-2
UBUNTU USN-3021-2

http://www.ubuntu.com/usn/USN-3018-2
UBUNTU USN-3018-2

http://www.ubuntu.com/usn/USN-3019-1
UBUNTU USN-3019-1

http://www.ubuntu.com/usn/USN-3021-1
UBUNTU USN-3021-1

http://www.ubuntu.com/usn/USN-3018-1
UBUNTU USN-3018-1

http://www.ubuntu.com/usn/USN-3006-1
UBUNTU USN-3006-1

http://www.ubuntu.com/usn/USN-3007-1
UBUNTU USN-3007-1

http://www.ubuntu.com/usn/USN-3005-1
UBUNTU USN-3005-1