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Vulnerability Details : CVE-2016-9806

Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.
Publish Date : 2016-12-28 Last Update Date : 2017-07-17
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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 415

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2017:1842: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20171842 unix
RHSA-2017:2077: kernel-rt security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20172077 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-2016-9806

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 4.6.2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2016-9806

https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520 CONFIRM
https://source.android.com/security/bulletin/2017-03-01.html CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1401502 CONFIRM
http://www.securitytracker.com/id/1037968
SECTRACK 1037968
http://www.securityfocus.com/bid/94653
BID 94653 Linux Kernel CVE-2016-9806 Local Denial of Service Vulnerability Release Date:2017-03-06
http://lists.openwall.net/netdev/2016/05/15/69
MLIST [netdev] 20160515 BUG: use-after-free in netlink_dump
http://www.openwall.com/lists/oss-security/2016/12/03/4
MLIST [oss-security] 20161203 CVE Request: -- Linux kernel: double free in netlink_dump
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3 CONFIRM
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520 CONFIRM

- Metasploit Modules Related To CVE-2016-9806

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


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