{"id":40546,"date":"2020-02-01T20:58:18","date_gmt":"2020-02-01T17:58:18","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/vo-freebsd-ustraneny-tri-uyazvimosti"},"modified":"2020-02-01T20:58:18","modified_gmt":"2020-02-01T17:58:18","slug":"vo-freebsd-ustraneny-tri-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/vo-freebsd-ustraneny-tri-uyazvimosti","title":{"rendered":"Ve FreeBSD byly odstran\u011bny t\u0159i zranitelnosti","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ve FreeBSD byly opraveny t\u0159i zranitelnosti, kter\u00e9 umo\u017e\u0148uj\u00ed prov\u00e9st k\u00f3d p\u0159i pou\u017eit\u00ed libfetch, opakovan\u011b odeslat IPsec pakety nebo z\u00edskat p\u0159\u00edstup k dat\u016fm j\u00e1dra. Probl\u00e9my byly opraveny v aktualizac\u00edch 12.1-RELEASE-p2, 12.0-RELEASE-p13 a 11.3-RELEASE-p6. <\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-January\/001924.html\">CVE-2020-7450<\/a><\/noindex> \u2014 p\u0159ete\u010den\u00ed bufferu v knihovn\u011b libfetch, kter\u00e1 se pou\u017e\u00edv\u00e1 k stahov\u00e1n\u00ed soubor\u016f v p\u0159\u00edkazu fetch, bal\u00ed\u010dkov\u00e9m spr\u00e1vci pkg a dal\u0161\u00edch n\u00e1stroj\u00edch. Zranitelnost m\u016f\u017ee v\u00e9st k proveden\u00ed k\u00f3du p\u0159i zpracov\u00e1n\u00ed speci\u00e1ln\u011b form\u00e1tovan\u00e9ho URL. \u00datok m\u016f\u017ee b\u00fdt proveden p\u0159i p\u0159\u00edstupu na webovou str\u00e1nku ovl\u00e1danou \u00fato\u010dn\u00edkem, kter\u00e1 schopna prost\u0159ednictv\u00edm HTTP p\u0159esm\u011brov\u00e1n\u00ed iniciovat zpracov\u00e1n\u00ed \u0161kodliv\u00e9ho URL;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-January\/001926.html\">CVE-2019-15875<\/a><\/noindex> \u2014 zranitelnost v mechanismu generov\u00e1n\u00ed core dump\u016f proces\u016f. Kv\u016fli chyb\u011b byly do core dump\u016f zapisov\u00e1ny a\u017e 20 bajt\u016f dat ze z\u00e1sobn\u00edku j\u00e1dra, ve kter\u00fdch potenci\u00e1ln\u011b mohla b\u00fdt zpracov\u00e1van\u00e1 d\u016fv\u011brn\u00e1 informace. Jako obchvat ochrany lze vypnout generaci core soubor\u016f pomoc\u00ed p\u0159\u00edkazu sysctl kern.coredump=0;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.freebsd.org\/pipermail\/freebsd-announce\/2020-January\/001925.html\">CVE-2019-5613<\/a><\/noindex> \u2014 chybu v k\u00f3du blokov\u00e1n\u00ed op\u011btovn\u00e9ho odes\u00edl\u00e1n\u00ed dat v IPsec, kter\u00e1 umo\u017enila op\u011btovn\u011b odes\u00edlat d\u0159\u00edve zachycen\u00e9 pakety. V z\u00e1vislosti na vysoce\u00farov\u0148ov\u00e9m protokolu, p\u0159en\u00e1\u0161en\u00e9m nad IPsec, zji\u0161t\u011bn\u00fd probl\u00e9m umo\u017e\u0148uje nap\u0159\u00edklad op\u011btovn\u00e9 odes\u00edl\u00e1n\u00ed d\u0159\u00edve p\u0159enesen\u00fdch p\u0159\u00edkaz\u016f.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52277\">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\u044b \u0442\u0440\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 libfetch, \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u043e \u043e\u0442\u043f\u0440\u0430\u0432\u0438\u0442\u044c IPsec-\u043f\u0430\u043a\u0435\u0442\u044b \u0438\u043b\u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0434\u0430\u043d\u043d\u044b\u043c \u044f\u0434\u0440\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \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-p2, 12.0-RELEASE-p13 \u0438 11.3-RELEASE-p6. CVE-2020-7450 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 libfetch, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0439 \u0434\u043b\u044f \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0444\u0430\u0439\u043b\u043e\u0432 \u0432 \u043a\u043e\u043c\u0430\u043d\u0434\u0435 fetch, \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u043c \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0435 pkg \u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u0443\u0442\u0438\u043b\u0438\u0442\u0430\u0445. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 [&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":[],"tags":[],"class_list":["post-40546","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412\u043e FreeBSD \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0442\u0440\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 libfetch, \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u043e 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