National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-5195 Detail

Description

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."

Source:  MITRE
Description Last Modified:  11/10/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619 Issue Tracking Patch
http://rhn.redhat.com/errata/RHSA-2016-2098.html
http://rhn.redhat.com/errata/RHSA-2016-2105.html
http://rhn.redhat.com/errata/RHSA-2016-2106.html
http://rhn.redhat.com/errata/RHSA-2016-2107.html
http://rhn.redhat.com/errata/RHSA-2016-2110.html
http://rhn.redhat.com/errata/RHSA-2016-2118.html
http://rhn.redhat.com/errata/RHSA-2016-2120.html
http://rhn.redhat.com/errata/RHSA-2016-2124.html
http://rhn.redhat.com/errata/RHSA-2016-2126.html
http://rhn.redhat.com/errata/RHSA-2016-2127.html
http://rhn.redhat.com/errata/RHSA-2016-2128.html
http://rhn.redhat.com/errata/RHSA-2016-2132.html
http://rhn.redhat.com/errata/RHSA-2016-2133.html
http://securityadvisories.paloaltonetworks.com/Home/Detail/73
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3 Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/10/26/7 Mailing List Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.securityfocus.com/bid/93793
http://www.securitytracker.com/id/1037078
https://access.redhat.com/errata/RHSA-2017:0372
https://access.redhat.com/security/cve/cve-2016-5195 Third Party Advisory
https://access.redhat.com/security/vulnerabilities/2706661 Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa134
https://bugzilla.redhat.com/show_bug.cgi?id=1384344 Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1004418 Issue Tracking
https://dirtycow.ninja Third Party Advisory
https://github.com/dirtycow/dirtycow.github.io/wiki/PoCs Third Party Advisory
https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails Third Party Advisory
https://github.com/torvalds/linux/commit/19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619 Issue Tracking Patch Third Party Advisory
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03707en_us
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03722en_us
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03742en_us
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03761en_us
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05341463
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05352241
https://kc.mcafee.com/corporate/index?page=content&id=SB10176
https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5195.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20161025-0001/
https://security-tracker.debian.org/tracker/CVE-2016-5195 Issue Tracking Third Party Advisory
https://source.android.com/security/bulletin/2016-11-01.html
https://source.android.com/security/bulletin/2016-12-01.html
https://www.exploit-db.com/exploits/40611/
https://www.exploit-db.com/exploits/40616/
https://www.exploit-db.com/exploits/40839/
https://www.exploit-db.com/exploits/40847/
https://www.kb.cert.org/vuls/id/243144 Third Party Advisory US Government Resource

Technical Details

Vulnerability Type (View All)

Change History

17 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-5195
NVD Published Date:
11/10/2016
NVD Last Modified:
07/18/2018