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CVE-2016-5195Date: (C)2016-11-14   (M)2018-07-19


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."

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score : 7.2
Exploit Score: 1.8Exploit Score: 3.9
Impact Score: 5.9Impact Score: 10.0
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: COMPLETE
Scope: UNCHANGEDIntegrity: COMPLETE
Confidentiality: HIGHAvailability: COMPLETE
Integrity: HIGH 
Availability: HIGH 
  
Reference:
SECTRACK-1037078
EXPLOIT-DB-40611
EXPLOIT-DB-40616
EXPLOIT-DB-40839
EXPLOIT-DB-40847
BID-93793
RHSA-2016:2098
RHSA-2016:2105
RHSA-2016:2106
RHSA-2016:2107
RHSA-2016:2110
RHSA-2016:2118
RHSA-2016:2120
RHSA-2016:2124
RHSA-2016:2126
RHSA-2016:2127
RHSA-2016:2128
RHSA-2016:2132
RHSA-2016:2133
RHSA-2017:0372
VU#243144
http://www.openwall.com/lists/oss-security/2016/10/26/7
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619
http://securityadvisories.paloaltonetworks.com/Home/Detail/73
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
https://access.redhat.com/security/cve/cve-2016-5195
https://access.redhat.com/security/vulnerabilities/2706661
https://bto.bluecoat.com/security-advisory/sa134
https://bugzilla.redhat.com/show_bug.cgi?id=1384344
https://bugzilla.suse.com/show_bug.cgi?id=1004418
https://dirtycow.ninja
https://github.com/dirtycow/dirtycow.github.io/wiki/PoCs
https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails
https://github.com/torvalds/linux/commit/19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619
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
https://security-tracker.debian.org/tracker/CVE-2016-5195
https://security.netapp.com/advisory/ntap-20161025-0001/
https://source.android.com/security/bulletin/2016-11-01.html
https://source.android.com/security/bulletin/2016-12-01.html

CPE    11
cpe:/o:canonical:ubuntu_core:15.04
cpe:/o:redhat:enterprise_linux:5
cpe:/o:linux:linux_kernel:3.19.8
cpe:/o:linux:linux_kernel:4.8.2
...
CWE    1
CWE-362
OVAL    35
oval:org.secpod.oval:def:602648
oval:org.secpod.oval:def:501888
oval:org.secpod.oval:def:1501618
oval:org.secpod.oval:def:1501619
...

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