CVE-2016-5195 Information

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.\

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619 http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html 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://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3 http://www.openwall.com/lists/oss-security/2016/10/26/7 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 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://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes https://kc.mcafee.com/corporate/index?page=content&id=SB10176 https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5195.html https://security.netapp.com/advisory/ntap-20161025-0001/ https://security.paloaltonetworks.com/CVE-2016-5195 https://security-tracker.debian.org/tracker/CVE-2016-5195 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

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8