漏洞描述
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."
影响产品
修复建议
建议关注厂商安全公告,及时升级至已修复版本,并结合实际资产暴露情况采取缓解措施。
参考链接
rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2098.html↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2022/08/09/4↗www.arista.comhttps://www.arista.com/en/support/advisories-notices/security-advisories/1753-security-advisory-0026↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3104-2↗kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10176↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00053.html↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2126.html↗fortiguard.comhttp://fortiguard.com/advisory/FG-IR-16-063↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3106-2↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00065.html↗people.canonical.comhttps://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5195.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00064.html↗www.securityfocus.comhttp://www.securityfocus.com/bid/93793↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3106-3↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2110.html↗www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3106-1↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2124.html↗github.comhttps://github.com/torvalds/linux/commit/19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619↗kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10807↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2016/10/27/13↗www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3105-1↗www.securityfocus.comhttp://www.securityfocus.com/archive/1/540344/100/0/threaded↗tools.cisco.comhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-linux↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00054.html↗security.netapp.comhttps://security.netapp.com/advisory/ntap-20161025-0001/↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2120.html↗h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541↗www.securityfocus.comhttp://www.securityfocus.com/archive/1/archive/1/540736/100/0/threaded↗www.securityfocus.comhttp://www.securityfocus.com/archive/1/539611/100/0/threaded↗git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00034.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00100.html↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2127.html↗bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1384344↗www.kb.cert.orghttps://www.kb.cert.org/vuls/id/243144↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2022/08/08/8↗www.securityfocus.comhttp://www.securityfocus.com/archive/1/540252/100/0/threaded↗access.redhat.comhttps://access.redhat.com/security/cve/cve-2016-5195↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2016/10/30/1↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2022/08/08/1↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00051.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00035.html↗packetstormsecurity.comhttp://packetstormsecurity.com/files/139277/Kernel-Live-Patch-Security-Notice-LSN-0012-1.html↗dirtycow.ninjahttps://dirtycow.ninja↗www.debian.orghttp://www.debian.org/security/2016/dsa-3696↗h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05341463↗kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10177↗help.ecostruxureit.comhttps://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes↗source.android.comhttps://source.android.com/security/bulletin/2016-11-01.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00063.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00066.html↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3APRVDVPDBXLH4DC5UKZVCR742MJIM3/↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2132.html↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3106-4↗h20566.www2.hpe.comhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03742en_us↗security.paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2016-5195↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2016/10/26/7↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2022/08/08/2↗www.securityfocus.comhttp://www.securityfocus.com/archive/1/archive/1/540344/100/0/threaded↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2105.html↗h20566.www2.hpe.comhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03722en_us↗kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10770↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00039.html↗www.securityfocus.comhttp://www.securityfocus.com/archive/1/archive/1/540252/100/0/threaded↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00040.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00049.html↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2133.html↗access.redhat.comhttps://access.redhat.com/security/vulnerabilities/2706661↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3107-1↗kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10222↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2128.html↗packetstormsecurity.comhttp://packetstormsecurity.com/files/139923/Linux-Kernel-Dirty-COW-PTRACE_POKEDATA-Privilege-Escalation.html↗tools.cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-vcsd↗packetstormsecurity.comhttp://packetstormsecurity.com/files/142151/Kernel-Live-Patch-Security-Notice-LSN-0021-1.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00057.html↗bto.bluecoat.comhttps://bto.bluecoat.com/security-advisory/sa134↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2016/10/21/1↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00055.html↗bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=1004418↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3104-1↗packetstormsecurity.comhttp://packetstormsecurity.com/files/139922/Linux-Kernel-Dirty-COW-PTRACE_POKEDATA-Privilege-Escalation.html↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2022/03/07/1↗h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05352241↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:0372↗security-tracker.debian.orghttps://security-tracker.debian.org/tracker/CVE-2016-5195↗h20566.www2.hpe.comhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03707en_us↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00056.html↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2107.html↗www.securitytracker.comhttp://www.securitytracker.com/id/1037078↗h20566.www2.hpe.comhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05352241↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00048.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-12/msg00033.html↗h20566.www2.hpe.comhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03761en_us↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00038.html↗www.huawei.comhttp://www.huawei.com/en/psirt/security-advisories/huawei-sa-20161207-01-dirtycow-en↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2022/08/15/1↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00072.html↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2118.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00067.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00052.html↗source.android.comhttps://source.android.com/security/bulletin/2016-12-01.html↗www.securityfocus.comhttp://www.securityfocus.com/archive/1/540736/100/0/threaded↗rhn.redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-2106.html↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3105-2↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00036.html↗www.ubuntu.comhttp://www.ubuntu.com/usn/USN-3107-2↗packetstormsecurity.comhttp://packetstormsecurity.com/files/139286/DirtyCow-Linux-Kernel-Race-Condition.html↗github.comhttps://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2016/11/03/7↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00058.html↗www.securityfocus.comhttp://www.securityfocus.com/archive/1/archive/1/539611/100/0/threaded↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E7M62SRP6CZLJ4ZXCRZKV4WPLQBSR7DT/↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00045.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2016-10/msg00050.html↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2022/08/08/7↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NWMDLBWMGZKFHMRJ7QUQVCERP5QHDB6W/↗kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10774↗