{"id":6181,"date":"2016-11-18T16:03:23","date_gmt":"2016-11-18T13:03:23","guid":{"rendered":"https:\/\/top.host\/blog\/?p=6181"},"modified":"2018-03-09T12:37:19","modified_gmt":"2018-03-09T09:37:19","slug":"dirty-cow-%cf%80%cf%8e%cf%82-%cf%84%ce%bf-%ce%b1%ce%bd%cf%84%ce%b9%ce%bc%ce%b5%cf%84%cf%89%cf%80%ce%af%cf%83%ce%b1%ce%bc%ce%b5","status":"publish","type":"post","link":"https:\/\/top.host\/blog\/el\/dirty-cow-%cf%80%cf%8e%cf%82-%cf%84%ce%bf-%ce%b1%ce%bd%cf%84%ce%b9%ce%bc%ce%b5%cf%84%cf%89%cf%80%ce%af%cf%83%ce%b1%ce%bc%ce%b5\/","title":{"rendered":"Dirty COW: \u03a0\u03ce\u03c2 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5 \u03c4\u03bf vulnerability \u03c3\u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c4\u03c9\u03bd Linux"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">\u03a0\u03c1\u03cc\u03c3\u03c6\u03b1\u03c4\u03b1, \u03bf\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2 \u03c4\u03c9\u03bd Linux \u03c3\u03b5 \u03cc\u03bb\u03bf\u03bd \u03c4\u03bf\u03bd \u03ba\u03cc\u03c3\u03bc\u03bf \u03ae\u03c1\u03b8\u03b1\u03bd \u03b1\u03bd\u03c4\u03b9\u03bc\u03ad\u03c4\u03c9\u03c0\u03bf\u03b9 \u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03c3\u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c4\u03c9\u03bd \u03c3\u03c5\u03c3\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03c0\u03bf\u03c5 \u03c4\u03b1 \u03ad\u03ba\u03b1\u03bd\u03b5 \u03b5\u03c5\u03ac\u03bb\u03c9\u03c4\u03b1 \u03c3\u03b5 \u03b5\u03c0\u03b9\u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c1\u03af\u03c4\u03c9\u03bd. \u03a3\u03c4\u03b7\u03bd Top.Host \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5 \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c4\u03bf Dirty COW \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf post \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03b7\u03c2, \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03b9\u03b8\u03b1\u03bd\u03cc\u03bd \u03bd\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03c4\u03b5, \u03c3\u03b5 \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03af\u03b6\u03b5\u03c3\u03c4\u03b5 \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf Linux \u03bc\u03b7\u03c7\u03ac\u03bd\u03b7\u03bc\u03b1.<\/span><\/p>\n<h2>\u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf Dirty COW;<\/h2>\n<p><span style=\"font-weight: 400;\">\u03a0\u03c1\u03cc\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1 vulnerability \u03c3\u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c4\u03c9\u03bd Linux \u03c0\u03bf\u03c5 \u03b4\u03af\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03b5 \u03ad\u03bd\u03b1\u03bd hacker \u03bd\u03b1 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03c3\u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c4\u03bf\u03c5 server \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03ba\u03c4\u03ae\u03c3\u03b5\u03b9 \u03c0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7 \u03c3\u03b5 \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03bf \u03c4\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1. \u03a0\u03b1\u03c1\u03cc\u03bb\u03bf \u03c0\u03bf\u03c5 \u03c4\u03bf Dirty COW \u03b5\u03af\u03bd\u03b1\u03b9 \u03b3\u03bd\u03c9\u03c3\u03c4\u03cc \u03b5\u03b4\u03ce \u03ba\u03b1\u03b9 \u03b5\u03bd\u03bd\u03ad\u03b1 \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1, \u03c4\u03b9\u03c2 \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03b5\u03c2 \u03b7\u03bc\u03ad\u03c1\u03b5\u03c2 \u03b4\u03b9\u03b1\u03c0\u03b9\u03c3\u03c4\u03ce\u03b8\u03b7\u03ba\u03b1\u03bd \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03b5\u03bd\u03b5\u03c1\u03b3\u03ac exploits, \u03bc\u03b5 \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03bd\u03b1 \u03be\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03ba\u03bf\u03b9\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd Linux.<\/span><\/p>\n<h2>\u03a0\u03ce\u03c2 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03b5 \u03c4\u03bf Dirty COW \u03b7 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03bc\u03b1\u03c2;<\/h2>\n<p><span style=\"font-weight: 400;\">\u0391\u03c0\u03cc \u03c4\u03b7 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae \u03c4\u03b7\u03c2 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c4\u03c9\u03bd exploits, \u03b7 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03c4\u03bf\u03c5 Infrastructure \u03c4\u03b7\u03c2 Top.Host \u03c0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03c3\u03b5 \u03c3\u03c4\u03b5\u03bd\u03ac \u03c4\u03bf\u03c5\u03c2 linux servers \u03ba\u03b1\u03b9 \u03b5\u03c6\u03ac\u03c1\u03bc\u03bf\u03c3\u03b5 \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c4\u03bf \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03bf update, \u03bc\u03cc\u03bb\u03b9\u03c2 \u03b5\u03ba\u03b4\u03cc\u03b8\u03b7\u03ba\u03b5 \u03c4\u03bf <\/span><a href=\"https:\/\/lkml.org\/lkml\/2016\/10\/19\/860\"><span style=\"font-weight: 400;\">patch<\/span><\/a><span style=\"font-weight: 400;\"> \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c4\u03c9\u03bd Linux, \u03b1\u03c0\u03cc \u03c4\u03bf community. \u039c\u03ac\u03bb\u03b9\u03c3\u03c4\u03b1, \u03c3\u03c4\u03b7\u03bd \u03c0\u03bb\u03b5\u03b9\u03bf\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd servers \u03b4\u03b5\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03c3\u03c4\u03b7\u03ba\u03b5 \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 \u03ba\u03b1\u03bd reboot, \u03ba\u03ac\u03c4\u03b9 \u03c0\u03bf\u03c5 \u03b8\u03b1 \u03b5\u03af\u03c7\u03b5 \u03c3\u03b1\u03bd \u03c3\u03c5\u03bd\u03ad\u03c0\u03b5\u03b9\u03b1 \u03ad\u03bd\u03b1 \u03bc\u03b9\u03ba\u03c1\u03cc downtime. <\/span><\/p>\n<h2>\u03a4\u03b9 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03bf\u03c5\u03bd \u03bf\u03b9 \u03c0\u03b5\u03bb\u03ac\u03c4\u03b5\u03c2 \u03bc\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03b8\u03ad\u03c4\u03bf\u03c5\u03bd VPS \u03ae Dedicated Servers;<\/h2>\n<p><span style=\"font-weight: 400;\">\u0391\u03c0\u03cc \u03c4\u03b9\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b5\u03c2 \u03c4\u03b7\u03c2 Top.Host \u03b5\u03af\u03bd\u03b1\u03b9 \u03ae\u03b4\u03b7 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03c5\u03bc\u03ad\u03bd\u03bf\u03b9 \u03cc\u03bb\u03bf\u03b9 \u03bf\u03b9 \u03c0\u03b5\u03bb\u03ac\u03c4\u03b5\u03c2 \u03bc\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03b8\u03ad\u03c4\u03bf\u03c5\u03bd shared \u03ba\u03b1\u03b9 reseller \u03c0\u03b1\u03ba\u03ad\u03c4\u03b1. \u0393\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03cc\u03c7\u03bf\u03c5\u03c2 unmanaged VPS \u03ba\u03b1\u03b9 dedicated servers, \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c5\u03b3\u03ba\u03b5\u03bd\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b1 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b1 \u03b2\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03bf\u03c5\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c4\u03c9\u03bd servers \u03c4\u03bf\u03c5\u03c2.<\/span><\/p>\n<p><b>\u0392\u03ae\u03bc\u03b1 1. \u0395\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03b1\u03bd \u03bf server \u03c3\u03b1\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9<\/b><\/p>\n<p><span style=\"font-weight: 400;\">\u0391\u03c1\u03c7\u03b9\u03ba\u03ac, \u03b8\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03be\u03b5\u03c4\u03b5 \u03b1\u03bd \u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c0\u03bf\u03c5 \u03b4\u03b9\u03b1\u03b8\u03ad\u03c4\u03b5\u03b9 \u03bf server \u03c3\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9. <\/span><\/p>\n<p><span style=\"text-decoration: underline;\"><span style=\"font-weight: 400;\">\u0393\u03b9\u03b1 <\/span><b>Ubuntu \/ Debian<\/b><span style=\"font-weight: 400;\"> \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/span><span style=\"font-weight: 400;\">:<br \/>\n<\/span><\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u03a4\u03c1\u03ad\u03be\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b5\u03bd\u03c4\u03bf\u03bb\u03ae: \u00a0<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">uname -rv<\/span><\/i><\/p>\n<p><span style=\"font-weight: 400;\">\u03a4\u03bf \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03b8\u03b1 \u03bb\u03ac\u03b2\u03b5\u03c4\u03b5, \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03bc\u03bf\u03c1\u03c6\u03ae\u03c2:<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU\/Linux<\/span><\/i><i><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/i><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u039f server \u03c3\u03b1\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf exploit \u03b1\u03bd \u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c3\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03c1\u03bf\u03b3\u03b5\u03bd\u03ad\u03c3\u03c4\u03b5\u03c1\u03b7 \u03c4\u03c9\u03bd \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">4.8.0-26.28 \u03b3\u03b9\u03b1 Ubuntu 16.10<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">4.4.0-45.66 \u03b3\u03b9\u03b1 Ubuntu 16.04 LTS<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">3.13.0-100.147 \u03b3\u03b9\u03b1 Ubuntu 14.04 LTS<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">3.2.0-113.155 \u03b3\u03b9\u03b1 Ubuntu 12.04 LTS<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">3.16.36-1+deb8u2 \u03b3\u03b9\u03b1 Debian 8<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">3.2.82-1 \u03b3\u03b9\u03b1 Debian 7<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">4.7.8-1 \u03b3\u03b9\u03b1 Debian unstable<\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"text-decoration: underline;\"><span style=\"font-weight: 400;\">\u0393\u03b9\u03b1 <\/span><b>CentOs<\/b><span style=\"font-weight: 400;\"> \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1:<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u039a\u03ac\u03c0\u03bf\u03b9\u03b5\u03c2 \u03b5\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd CentOS \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c4\u03b5\u03c3\u03c4\u03ac\u03c1\u03bf\u03c5\u03bd \u03c4\u03bf\u03c5\u03c2 servers \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 <\/span><a href=\"https:\/\/access.redhat.com\/sites\/default\/files\/rh-cve-2016-5195_1.sh\"><span style=\"font-weight: 400;\">\u03b1\u03c5\u03c4\u03cc \u03c4\u03bf script \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd RedHat<\/span><\/a><span style=\"font-weight: 400;\">. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u039a\u03b1\u03c4\u03b5\u03b2\u03ac\u03c3\u03c4\u03b5 \u03c4\u03bf script: <\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">wget <\/span><\/i><a href=\"https:\/\/access.redhat.com\/sites\/default\/files\/rh-cve-2016-5195_1.sh\"><i><span style=\"font-weight: 400;\">https:\/\/access.redhat.com\/sites\/default\/files\/rh-cve-2016-5195_1.sh<\/span><\/i><\/a><\/p>\n<p><span style=\"font-weight: 400;\"><br \/>\n\u0388\u03c0\u03b5\u03b9\u03c4\u03b1, \u03c4\u03c1\u03ad\u03be\u03c4\u03b5 \u03c4\u03bf \u03bc\u03b5 bash:<br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><i><span style=\"font-weight: 400;\">bash rh-cve-2016-5195_1.sh<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">\u0398\u03b1 \u03c0\u03ac\u03c1\u03b5\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03bc\u03bf\u03c1\u03c6\u03ae\u03c2:<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">Your kernel is 3.10.0-427.10.1.lve1.4.22.el7.x86_64 which is NOT vulnerable.<\/span><\/i><\/p>\n<p><span style=\"font-weight: 400;\">\u03a3\u03c4\u03bf \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03ac \u03bc\u03b1\u03c2 \u03bf server \u03b4\u03b5\u03bd \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf vulnerability. \u03a3\u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b7 \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03b8\u03b1 \u03bb\u03ac\u03b2\u03b5\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ae\u03bd\u03c5\u03bc\u03b1 \u03cc\u03c4\u03b9 \u03bf server \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03c5\u03ac\u03bb\u03c9\u03c4\u03bf\u03c2.<\/span><\/p>\n<p><b><br \/>\n\u0392\u03ae\u03bc\u03b1 2. \u0394\u03b9\u03bf\u03c1\u03b8\u03ce\u03c3\u03c4\u03b5 \u03c4\u03bf vulnerability<\/b><\/p>\n<p><span style=\"font-weight: 400;\">\u0397 \u03b5\u03c0\u03b9\u03b4\u03b9\u03cc\u03c1\u03b8\u03c9\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03bb\u03ae \u03ba\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf update \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf reboot \u03c4\u03bf\u03c5 server.<\/span><\/p>\n<p><span style=\"text-decoration: underline;\"><span style=\"font-weight: 400;\">\u0393\u03b9\u03b1 <\/span><b>Ubuntu \/ Debian<\/b><span style=\"font-weight: 400;\"> \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/span><span style=\"font-weight: 400;\">:<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u03a4\u03c1\u03ad\u03be\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b5\u03bd\u03c4\u03bf\u03bb\u03ae:<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">sudo apt-get update &amp;&amp; sudo apt-get dist-upgrade<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline;\"><span style=\"font-weight: 400;\">\u0393\u03b9\u03b1 <\/span><b>CentOs<\/b><span style=\"font-weight: 400;\"> \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1:<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u039c\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03b2\u03b1\u03b8\u03bc\u03af\u03c3\u03b5\u03c4\u03b5 \u03cc\u03bb\u03b1 \u03c4\u03b1 CentOS 5, 6, and 7 \u03c0\u03b1\u03ba\u03ad\u03c4\u03b1 \u03bc\u03b5 \u03c4\u03bf sudo yum update, \u03b1\u03bb\u03bb\u03ac \u03b1\u03bd \u03b5\u03c0\u03b9\u03b8\u03c5\u03bc\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03b2\u03b1\u03b8\u03bc\u03af\u03c3\u03b5\u03c4\u03b5 \u03bc\u03cc\u03bd\u03bf \u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03b7 \u03c4\u03bf\u03c5 bug, \u03c4\u03c1\u03ad\u03be\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b5\u03bd\u03c4\u03bf\u03bb\u03ae:<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">sudo yum upgrade kernel<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">\u0393\u03b9\u03b1 \u03bf\u03c0\u03bf\u03b9\u03b1\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 \u03b1\u03c0\u03bf\u03c1\u03af\u03b1 \u03ad\u03c7\u03b5\u03c4\u03b5 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf vulnerability \u03ae \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2, \u03bc\u03b7\u03bd \u03b4\u03b9\u03c3\u03c4\u03ac\u03c3\u03b5\u03c4\u03b5 \u03bd\u03b1 <\/span><a href=\"https:\/\/top.host\/el\/contact-us\"><span style=\"font-weight: 400;\">\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03ae\u03c3\u03b5\u03c4\u03b5 \u03bc\u03b5 \u03c4\u03bf \u03c4\u03bc\u03ae\u03bc\u03b1 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae\u03c2 \u03c5\u03c0\u03bf\u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7\u03c2<\/span><\/a><span style=\"font-weight: 400;\"> \u03c4\u03b7\u03c2 Top.Host.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u03a0\u03c1\u03cc\u03c3\u03c6\u03b1\u03c4\u03b1, \u03bf\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2 \u03c4\u03c9\u03bd Linux \u03c3\u03b5 \u03cc\u03bb\u03bf\u03bd \u03c4\u03bf\u03bd \u03ba\u03cc\u03c3\u03bc\u03bf \u03ae\u03c1\u03b8\u03b1\u03bd \u03b1\u03bd\u03c4\u03b9\u03bc\u03ad\u03c4\u03c9\u03c0\u03bf\u03b9 \u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03c3\u03c4\u03bf\u03bd&hellip;<\/p>\n","protected":false},"author":16,"featured_media":6221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"mc4wp_mailchimp_campaign":[],"footnotes":""},"categories":[35,50],"tags":[247,444,154,212,445,40,85,68,97,47,153,442,122,443,117],"coauthors":[],"class_list":["post-6181","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-customer-care-el","category-security","tag-customer-care","tag-dirty-cow","tag-extreme-support","tag-extreme-support-team","tag-fix","tag-how-to","tag-linux","tag-news","tag-security-2","tag-support","tag-tophost","tag-vulnerability","tag-122","tag-443","tag-117"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.2 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Dirty COW: \u03c0\u03ce\u03c2 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5 \u03c4\u03bf vulnerability \u03c3\u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c4\u03c9\u03bd Linux<\/title>\n<meta name=\"description\" content=\"\u03a0\u03c1\u03cc\u03c3\u03c6\u03b1\u03c4\u03b1, \u03ae\u03c1\u03b8\u03b1\u03bc\u03b5 \u03b1\u03bd\u03c4\u03b9\u03bc\u03ad\u03c4\u03c9\u03c0\u03bf\u03b9 \u03bc\u03b5 \u03c4\u03bf Dirty COW, \u03bc\u03b9\u03b1 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 Linux. \u0394\u03b5\u03af\u03c4\u03b5 \u03c0\u03ce\u03c2 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5, \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b9 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03c4\u03b5 \u03b5\u03c3\u03b5\u03af\u03c2 \u03c3\u03c4\u03bf\u03bd Linux server \u03c3\u03b1\u03c2.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/top.host\/blog\/el\/dirty-cow-\u03c0\u03ce\u03c2-\u03c4\u03bf-\u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dirty COW: \u03a0\u03ce\u03c2 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5 \u03c4\u03bf vulnerability \u03c3\u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c4\u03c9\u03bd Linux\" \/>\n<meta property=\"og:description\" content=\"\u03a0\u03c1\u03cc\u03c3\u03c6\u03b1\u03c4\u03b1, \u03ae\u03c1\u03b8\u03b1\u03bc\u03b5 \u03b1\u03bd\u03c4\u03b9\u03bc\u03ad\u03c4\u03c9\u03c0\u03bf\u03b9 \u03bc\u03b5 \u03c4\u03bf Dirty COW, \u03bc\u03b9\u03b1 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 Linux. \u0394\u03b5\u03af\u03c4\u03b5 \u03c0\u03ce\u03c2 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5, \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b9 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03c4\u03b5 \u03b5\u03c3\u03b5\u03af\u03c2 \u03c3\u03c4\u03bf\u03bd Linux server \u03c3\u03b1\u03c2.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/top.host\/blog\/el\/dirty-cow-\u03c0\u03ce\u03c2-\u03c4\u03bf-\u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5\/\" \/>\n<meta property=\"og:site_name\" content=\"Top.Host Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/tophostGR\/\" \/>\n<meta property=\"article:published_time\" content=\"2016-11-18T13:03:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-03-09T09:37:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/top.host\/blog\/wp-content\/uploads\/2016\/11\/BLOGIMAGES_tophost_cow-min.png\" \/>\n\t<meta property=\"og:image:width\" content=\"691\" \/>\n\t<meta property=\"og:image:height\" content=\"390\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"\u0392\u03ac\u03c3\u03c9 \u03a7\u03c1\u03c5\u03c3\u03b9\u03ba\u03bf\u03cd\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@TophostExtreme\" \/>\n<meta name=\"twitter:site\" content=\"@TophostExtreme\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u0392\u03ac\u03c3\u03c9 \u03a7\u03c1\u03c5\u03c3\u03b9\u03ba\u03bf\u03cd\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/top.host\\\/blog\\\/el\\\/dirty-cow-%cf%80%cf%8e%cf%82-%cf%84%ce%bf-%ce%b1%ce%bd%cf%84%ce%b9%ce%bc%ce%b5%cf%84%cf%89%cf%80%ce%af%cf%83%ce%b1%ce%bc%ce%b5\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/top.host\\\/blog\\\/el\\\/dirty-cow-%cf%80%cf%8e%cf%82-%cf%84%ce%bf-%ce%b1%ce%bd%cf%84%ce%b9%ce%bc%ce%b5%cf%84%cf%89%cf%80%ce%af%cf%83%ce%b1%ce%bc%ce%b5\\\/\"},\"author\":{\"name\":\"\u0392\u03ac\u03c3\u03c9 \u03a7\u03c1\u03c5\u03c3\u03b9\u03ba\u03bf\u03cd\",\"@id\":\"https:\\\/\\\/top.host\\\/blog\\\/#\\\/schema\\\/person\\\/f27701921d351a3df39092706509c1bb\"},\"headline\":\"Dirty COW: \u03a0\u03ce\u03c2 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b1\u03bc\u03b5 \u03c4\u03bf vulnerability \u03c3\u03c4\u03bf\u03bd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03c4\u03c9\u03bd 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