{"id":100782,"date":"2021-07-16T22:22:59","date_gmt":"2021-07-16T20:23:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-ublock-origin-privodyashhaya-k-krahu-ili-ischerpaniyu-resursov"},"modified":"2021-07-16T22:22:59","modified_gmt":"2021-07-16T20:23:00","slug":"uyazvimost-v-ublock-origin-privodyashhaya-k-krahu-ili-ischerpaniyu-resursov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimost-v-ublock-origin-privodyashhaya-k-krahu-ili-ischerpaniyu-resursov","title":{"rendered":"Vulnerability in uBlock Origin leading to crashes or resource exhaustion.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Az uBlock Origin nemk\u00edv\u00e1natos tartalomblokkol\u00f3 rendszer\u00e9ben egy sebezhet\u0151s\u00e9g tal\u00e1lhat\u00f3, amely \u00f6sszeoml\u00e1st vagy mem\u00f3riahi\u00e1nyt okozhat, amikor egy speci\u00e1lisan kialak\u00edtott URL-en navig\u00e1lunk, ha az URL a szigor\u00fa blokkol\u00e1s sz\u0171r\u0151i al\u00e1 esik. A sebezhet\u0151s\u00e9g csak akkor l\u00e9p fel, ha k\u00f6zvetlen\u00fcl a probl\u00e9m\u00e1s URL-re l\u00e9p\u00fcnk, p\u00e9ld\u00e1ul egy hivatkoz\u00e1sra kattintva. <\/p>\n

A sebezhet\u0151s\u00e9get a uBlock Origin 1.36.2-es friss\u00edt\u00e9s\u00e9ben jav\u00edtott\u00e1k. Hasonl\u00f3 probl\u00e9m\u00e1nak van kit\u00e9ve az uMatrix kieg\u00e9sz\u00edt\u0151 is, de annak t\u00e1mogat\u00e1sa megsz\u0171nt, \u00e9s tov\u00e1bbi friss\u00edt\u00e9sek nem k\u00e9sz\u00fclnek. Az uMatrixban a v\u00e9delmi kiskapuk hi\u00e1nyoznak (eredetileg azt javasolt\u00e1k, hogy az \u00f6sszes szigor\u00fa blokkol\u00e1si sz\u0171r\u0151t a 'Assets' f\u00fcl\u00f6n kereszt\u00fcl kapcsoljuk ki, de ezt az aj\u00e1nl\u00e1st el\u00e9gtelennek \u00e9s probl\u00e9m\u00e1snak tal\u00e1lt\u00e1k azok sz\u00e1m\u00e1ra, akik saj\u00e1t blokkol\u00e1si szab\u00e1lyaikat haszn\u00e1lj\u00e1k). A uMatrix, a Pale Moon projektb\u0151l sz\u00e1rmaz\u00f3 uMatrix fork, 4.4.9-es kiad\u00e1s\u00e1ban jav\u00edtott\u00e1k a sebezhet\u0151s\u00e9get. <\/p>\n

A szigor\u00fa blokkol\u00e1s sz\u0171r\u0151t \u00e1ltal\u00e1ban a k\u00f6vetkez\u0151 szinten hat\u00e1rozz\u00e1k meg domainok<\/a> \u00e9s azt jelenti, hogy b\u00e1rmilyen kapcsolat tilos, m\u00e9g a k\u00f6zvetlen linkre kattint\u00e1s eset\u00e9n is. A sebezhet\u0151s\u00e9g abb\u00f3l ad\u00f3dik, hogy amikor a felhaszn\u00e1l\u00f3 olyan oldalra navig\u00e1l, ami a szigor\u00fa blokkol\u00e1s sz\u0171r\u0151j\u00e9nek al\u00e1 tartozik, egy figyelmeztet\u00e9s jelenik meg, amely inform\u00e1ci\u00f3kat tartalmaz a blokkolt er\u0151forr\u00e1ssal kapcsolatban, bele\u00e9rtve az URL-t \u00e9s a k\u00e9r\u00e9si param\u00e9tereket is. A probl\u00e9ma az, hogy az uBlock Origin rekursz\u00edvan elemzi a k\u00e9r\u00e9si param\u00e9tereket, \u00e9s figyelmen k\u00edv\u00fcl hagyja a be\u00e1gyaz\u00e1s szintj\u00e9t a DOM f\u00e1ban. <\/p>\n

A speci\u00e1lisan form\u00e1zott URL feldolgoz\u00e1sa sor\u00e1n az uBlock Origin Chrome verzi\u00f3j\u00e1ban \u00f6sszeoml\u00e1st lehet kiv\u00e1ltani abban a folyamatban, amelyben a b\u00f6ng\u00e9sz\u0151 kieg\u00e9sz\u00edt\u00e9se fut. Az \u00f6sszeoml\u00e1s ut\u00e1n, am\u00edg a kieg\u00e9sz\u00edt\u0151vel rendelkez\u0151 folyamat \u00fajra nem indul, a felhaszn\u00e1l\u00f3 mentes marad a nem k\u00edv\u00e1nt tartalmak blokkol\u00e1s\u00e1t\u00f3l. Firefox alatt mem\u00f3ria kimer\u00fcl\u00e9s figyelhet\u0151 meg.

\"Vulnerability<\/center>
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043d\u0435\u0436\u0435\u043b\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u043e\u043d\u0442\u0435\u043d\u0442\u0430 uBlock Origin \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u043a\u0440\u0430\u0445\u0430 \u0438\u043b\u0438 \u0438\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u0440\u0438 \u043d\u0430\u0432\u0438\u0433\u0430\u0446\u0438\u0438 \u043f\u043e \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u043c\u0443 URL, \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043f\u043e\u0434\u043f\u0430\u0434\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u043e\u0433\u043e URL \u043f\u043e\u0434 \u0444\u0438\u043b\u044c\u0442\u0440\u044b \u0441\u0442\u0440\u043e\u0433\u043e\u0439 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 («strict blocking»). \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u0438 \u043f\u0440\u044f\u043c\u043e\u043c \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0435 \u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043d\u044b\u0439 URL, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 \u043f\u0440\u0438 \u043a\u043b\u0438\u043a\u0435 \u043f\u043e \u0441\u0441\u044b\u043b\u043a\u0435. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0438 uBlock Origin 1.36.2. \u0410\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u043e\u0439 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":100783,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100782","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 Sebezhet\u0151s\u00e9g az uBlock Origin-ben, amely \u00f6sszeoml\u00e1shoz vagy az er\u0151forr\u00e1sok kimer\u00fcl\u00e9s\u00e9hez vezet | ProHoster","description":"A k\u00edv\u00e1nt tartalom blokk\u00e1l\u00f3 rendszer\u00e9ben, az uBlock Origin-ben egy sebezhet\u0151s\u00e9g tal\u00e1lhat\u00f3, amely lehet\u0151v\u00e9 teszi a b\u00f6ng\u00e9sz\u0151 \u00f6sszeoml\u00e1s\u00e1t vagy a mem\u00f3ria kimer\u00fcl\u00e9s\u00e9t, amikor egy speci\u00e1lisan form\u00e1zott URL-en navig\u00e1lunk, amennyiben ez az URL al\u00e1 esik.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimost-v-ublock-origin-privodyashhaya-k-krahu-ili-ischerpaniyu-resursov","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 uBlock Origin, 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