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Vulnerability Details : CVE-2016-5195

Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."
Publish Date : 2016-11-10 Last Update Date : 2019-04-22
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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) Gain privileges
CWE ID 362

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2016:2098: kernel security update (Important) oval:com.redhat.rhsa:def:20162098 unix
RHSA-2016:2105: kernel security update (Important) oval:com.redhat.rhsa:def:20162105 unix
RHSA-2016:2110: kernel-rt security update (Important) oval:com.redhat.rhsa:def:20162110 unix
RHSA-2016:2124: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20162124 unix
RHSA-2017:0372: kernel-aarch64 security and bug fix update (Important) oval:com.redhat.rhsa:def:20170372 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-2016-5195

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Core 15.04 Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 12.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
4 OS Debian Debian Linux 7.0 Version Details Vulnerabilities
5 OS Debian Debian Linux 8.0 Version Details Vulnerabilities
6 OS Linux Linux Kernel 3.14.8 Version Details Vulnerabilities
7 OS Redhat Enterprise Linux 5 Version Details Vulnerabilities
8 OS Redhat Enterprise Linux 6.0 Version Details Vulnerabilities
9 OS Redhat Enterprise Linux 7.0 Version Details Vulnerabilities
10 OS Redhat Enterprise Linux Aus 6.2 Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Aus 6.4 Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Aus 6.5 Version Details Vulnerabilities
13 OS Redhat Enterprise Linux Eus 6.6 Version Details Vulnerabilities
14 OS Redhat Enterprise Linux Eus 6.7 Version Details Vulnerabilities
15 OS Redhat Enterprise Linux Eus 7.1 Version Details Vulnerabilities
16 OS Redhat Enterprise Linux Long Life 5.6 Version Details Vulnerabilities
17 OS Redhat Enterprise Linux Long Life 5.9 Version Details Vulnerabilities
18 OS Redhat Enterprise Linux Tus 6.5 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Core 1
Canonical Ubuntu Linux 2
Debian Debian Linux 2
Linux Linux Kernel 1
Redhat Enterprise Linux 3
Redhat Enterprise Linux Aus 3
Redhat Enterprise Linux Eus 3
Redhat Enterprise Linux Long Life 2
Redhat Enterprise Linux Tus 1

- References For CVE-2016-5195

https://www.kb.cert.org/vuls/id/243144
CERT-VN VU#243144
https://www.exploit-db.com/exploits/40847/
EXPLOIT-DB 40847
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619 CONFIRM
https://www.exploit-db.com/exploits/40839/
EXPLOIT-DB 40839
https://www.exploit-db.com/exploits/40616/
EXPLOIT-DB 40616
https://www.exploit-db.com/exploits/40611/
EXPLOIT-DB 40611
https://source.android.com/security/bulletin/2016-12-01.html CONFIRM
https://security.netapp.com/advisory/ntap-20161025-0001/ CONFIRM
https://source.android.com/security/bulletin/2016-11-01.html CONFIRM
https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5195.html CONFIRM
https://security-tracker.debian.org/tracker/CVE-2016-5195 CONFIRM
https://kc.mcafee.com/corporate/index?page=content&id=SB10176 CONFIRM
https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes CONFIRM
https://bugzilla.suse.com/show_bug.cgi?id=1004418 CONFIRM
http://www.openwall.com/lists/oss-security/2016/10/26/7
MLIST [oss-security] 20161026 Re: CVE-2016-5195 "Dirty COW" Linux kernel privilege escalation vulnerability
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05352241 CONFIRM
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05341463 CONFIRM
https://github.com/torvalds/linux/commit/19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619 CONFIRM
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03742en_us CONFIRM
http://www.securitytracker.com/id/1037078
SECTRACK 1037078
https://access.redhat.com/errata/RHSA-2017:0372
REDHAT RHSA-2017:0372
https://access.redhat.com/security/cve/cve-2016-5195 CONFIRM
https://access.redhat.com/security/vulnerabilities/2706661 CONFIRM
https://github.com/dirtycow/dirtycow.github.io/wiki/PoCs
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03722en_us CONFIRM
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03707en_us CONFIRM
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03761en_us CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2098.html
REDHAT RHSA-2016:2098
https://dirtycow.ninja
https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails
https://bto.bluecoat.com/security-advisory/sa134 CONFIRM
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541 CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1384344 CONFIRM
http://www.securityfocus.com/bid/93793
BID 93793 Linux Kernel CVE-2016-5195 Local Privilege Escalation Vulnerability Release Date:2017-12-05
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3 CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2118.html
REDHAT RHSA-2016:2118
http://rhn.redhat.com/errata/RHSA-2016-2120.html
REDHAT RHSA-2016:2120
http://rhn.redhat.com/errata/RHSA-2016-2124.html
REDHAT RHSA-2016:2124
http://rhn.redhat.com/errata/RHSA-2016-2126.html
REDHAT RHSA-2016:2126
http://rhn.redhat.com/errata/RHSA-2016-2127.html
REDHAT RHSA-2016:2127
http://rhn.redhat.com/errata/RHSA-2016-2128.html
REDHAT RHSA-2016:2128
http://rhn.redhat.com/errata/RHSA-2016-2132.html
REDHAT RHSA-2016:2132
http://rhn.redhat.com/errata/RHSA-2016-2133.html
REDHAT RHSA-2016:2133
http://securityadvisories.paloaltonetworks.com/Home/Detail/73 CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2105.html
REDHAT RHSA-2016:2105
http://rhn.redhat.com/errata/RHSA-2016-2106.html
REDHAT RHSA-2016:2106
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2107.html
REDHAT RHSA-2016:2107
http://rhn.redhat.com/errata/RHSA-2016-2110.html
REDHAT RHSA-2016:2110

- Metasploit Modules Related To CVE-2016-5195

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


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