{"id":81560,"date":"2020-05-14T19:42:19","date_gmt":"2020-05-14T17:42:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/udalyonno-ekspluatiruemye-uyazvimosti-vo-freebsd"},"modified":"2020-05-14T19:42:19","modified_gmt":"2020-05-14T17:42:19","slug":"udalyonno-ekspluatiruemye-uyazvimosti-vo-freebsd","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/udalyonno-ekspluatiruemye-uyazvimosti-vo-freebsd","title":{"rendered":"Dob\u00ebsi n\u00eb FreeBSD q\u00eb mund t\u00eb shfryt\u00ebzohen n\u00eb distanc\u00eb","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>N\u00eb FreeBSD <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-May\/thread.html\">eliminim<\/a><\/noindex> pes\u00eb dob\u00ebsi, mes t\u00eb cilave ka probleme q\u00eb potencialisht mund t\u00eb \u00e7ojn\u00eb n\u00eb mbishkrimin e t\u00eb dh\u00ebnave n\u00eb nivelin e kernelit gjat\u00eb d\u00ebrgimit t\u00eb paketave t\u00eb caktuara t\u00eb rrjetit ose t\u2019i lejojn\u00eb nj\u00eb p\u00ebrdoruesi lokal t\u00eb rris\u00eb privilegjet e tij. Dob\u00ebsit\u00eb jan\u00eb korrigjuar n\u00eb p\u00ebrdit\u00ebsimet 12.1-RELEASE-p5 dhe 11.3-RELEASE-p9. <\/p>\n<p>Dob\u00ebsia m\u00eb e rrezikshme (<noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-May\/001950.html\">CVE-2020-7454<\/a><\/noindex>) shkaktohet nga mungesa e verifikimit t\u00eb duhur t\u00eb madh\u00ebsis\u00eb s\u00eb paket\u00ebs n\u00eb bibliotek\u00ebn libalias gjat\u00eb p\u00ebrpunimit t\u00eb kokave specifike t\u00eb protokolleve. Biblioteka libalias p\u00ebrdoret n\u00eb filtrin e paketave ipfw p\u00ebr p\u00ebrkthimin e adresave dhe p\u00ebrfshin funksione tipike p\u00ebr z\u00ebvend\u00ebsimin e adresave n\u00eb paketat IP dhe p\u00ebrpunimin e protokolleve. Dob\u00ebsia b\u00ebn t\u00eb mundur, p\u00ebrmes d\u00ebrgimit t\u00eb nj\u00eb pakete rrjeti t\u00eb formuar posa\u00e7\u00ebrisht, leximin ose shkrimin e t\u00eb dh\u00ebnave n\u00eb zon\u00ebn e memories s\u00eb kernelit (kur p\u00ebrdoret zbatimi i NAT n\u00eb kernel) ose t\u00eb procesit<br \/>\nnatd (kur p\u00ebrdoret zbatimi i NAT n\u00eb hap\u00ebsir\u00ebn e p\u00ebrdoruesit). Problemi nuk prek konfigurimet NAT t\u00eb nd\u00ebrtuara duke p\u00ebrdorur filtrat e paketave pf dhe ipf, si edhe konfigurimet ipfw ku nuk p\u00ebrdoret NAT. <\/p>\n<p>Dob\u00ebsi t\u00eb tjera:<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-May\/001951.html\">CVE-2020-7455<\/a><\/noindex> \u2014 nj\u00eb tjet\u00ebr \u00e7arje e shfryt\u00ebzuar n\u00eb distanc\u00eb n\u00eb libalias, e lidhur me llogaritjen e pap\u00ebrshtatshme t\u00eb gjat\u00ebsi s\u00eb paketave n\u00eb trajtuesin FTP. Problemi kufizohet n\u00eb rrjedhjen e p\u00ebrmbajtjes s\u00eb disa bajt\u00ebve t\u00eb t\u00eb dh\u00ebnave nga zona e memories s\u00eb kernelit ose procesit natd.\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-May\/001953.html\">CVE-2019-15879<\/a><\/noindex> \u2014 nj\u00eb \u00e7arje n\u00eb modulin cryptodev, e shkaktuar nga qasja n\u00eb nj\u00eb zon\u00eb t\u00eb memories q\u00eb \u00ebsht\u00eb \u00e7liruar tashm\u00eb (use-after-free), dhe e cila lejon nj\u00eb proces t\u00eb paprivilegjuar t\u00eb shkruaj\u00eb sektor\u00eb t\u00eb rast\u00ebsish\u00ebm t\u00eb memories s\u00eb kernelit. Si nj\u00eb zgjidhje p\u00ebr bllokimin e \u00e7arjes, rekomandohet q\u00eb t\u00eb shkarkohet moduli cryptodev me komand\u00ebn \u00abkldunload cryptodev\u00bb, n\u00ebse \u00ebsht\u00eb ngarkuar (p\u00ebr default cryptodev nuk ngarkohet). Moduli cryptodev u jep aplikacioneve nga hap\u00ebsira e p\u00ebrdoruesit qasje n\u00eb nd\u00ebrfaqen \/dev\/crypto p\u00ebr t\u00eb aksesuar mekanizmat p\u00ebrshpejtimit harduerik t\u00eb operacioneve kriptografike (n\u00eb AES-NI dhe OpenSSL \/dev\/crypto nuk p\u00ebrdoret).\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-May\/001954.html\">CVE-2019-15880<\/a><\/noindex> \u2014 \u00e7arja e dyt\u00eb n\u00eb cryptodev, e cila lejon nj\u00eb p\u00ebrdorues t\u00eb paprivilegjuar t\u00eb inicoj\u00eb d\u00ebshtimin e kernelit duke d\u00ebrguar nj\u00eb k\u00ebrkes\u00eb p\u00ebr t\u00eb kryer nj\u00eb operacion kriptografik me nj\u00eb MAC t\u00eb pap\u00ebrshtatsh\u00ebm. Problemi \u00ebsht\u00eb shkaktuar nga mungesa e kontrollit t\u00eb madh\u00ebsis\u00eb s\u00eb \u00e7el\u00ebsit MAC gjat\u00eb alokimit t\u00eb nj\u00eb tamponi p\u00ebr ruajtjen e tij (tamponi krijohej mbi baz\u00ebn e t\u00eb dh\u00ebnave t\u00eb p\u00ebrdoruesit p\u00ebr madh\u00ebsin\u00eb, pa kontrollin e madh\u00ebsis\u00eb faktike).\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-May\/001952.html\">CVE-2019-15878<\/a><\/noindex> \u2014 nj\u00eb \u00e7arje n\u00eb implementimin e protokollit SCTP (Stream Control Transmission Protocol), e shkaktuar nga kontrollimi i pasakt\u00eb t\u00eb \u00e7el\u00ebsit t\u00eb ndar\u00eb, i aplikuar nga zgjatimi SCTP-AUTH p\u00ebr autentikimin e sekuencave SCTP. Nj\u00eb aplikacion lokal mund t\u00eb azhurnoj\u00eb \u00e7el\u00ebsin p\u00ebrmes Socket API, duke nd\u00ebrprer\u00eb nj\u00ebkoh\u00ebsisht lidhjen SCTP, \u00e7ka do t\u00eb shkaktoj\u00eb qasje n\u00eb nj\u00eb zon\u00eb t\u00eb memories q\u00eb \u00ebsht\u00eb \u00e7liruar tashm\u00eb (use-after-free).\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Burimi: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52948\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u043e FreeBSD \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e \u043f\u044f\u0442\u044c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0441\u0440\u0435\u0434\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u043c\u0435\u044e\u0442\u0441\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0433\u0443\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u044f\u0434\u0440\u0430 \u043f\u0440\u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0438\u043b\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u043c\u0443 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u044b \u0432 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\u0445 12.1-RELEASE-p5 \u0438 11.3-RELEASE-p9. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2020-7454) \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0434\u043e\u043b\u0436\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u043f\u0430\u043a\u0435\u0442\u0430 \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 libalias \u043f\u0440\u0438 \u0440\u0430\u0437\u0431\u043e\u0440\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u044b\u0445 \u0434\u043b\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-81560","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412\u043e FreeBSD \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e \u043f\u044f\u0442\u044c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0441\u0440\u0435\u0434\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u043c\u0435\u044e\u0442\u0441\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e.\" \/>\n\t<meta name=\"robots\" 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