{"id":107183,"date":"2023-03-10T18:48:11","date_gmt":"2023-03-10T16:48:11","guid":{"rendered":"https:\/\/prohoster.info\/?p=107183"},"modified":"2023-03-13T12:06:39","modified_gmt":"2023-03-13T10:06:39","slug":"kriticheskaya-uyazvimost-v-wasmtime-runtime-dlya-webassembly-prilozhenij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/kriticheskaya-uyazvimost-v-wasmtime-runtime-dlya-webassembly-prilozhenij","title":{"rendered":"Kriitiline haavatavus Wasmtime'is, WebAssembly rakenduste k\u00e4itamiseks m\u00f5eldud keskkonnas","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Wasmtime 6.0.1, 5.0.1 ja 4.0.1 korrektsioontegevustes on k\u00f5rge riskiga haavatavus (CVE-2023-26489) k\u00f5rvaldatud. See haavatavus v\u00f5imaldab r\u00fcnnakul luua andmete kirjutamise m\u00e4lu piirkonda, mis \u00fcletab lubatud piire, mis v\u00f5ib potentsiaalselt v\u00f5imaldada r\u00fcndajal k\u00e4ivitada oma koodi v\u00e4ljaspool WASI isoleeritud keskkonda. <\/p>\n

Wasmtime on WebAssembly rakenduste t\u00f6\u00f6aeg, mis toetab WASI (WebAssembly System Interface) laiendusi nagu tavalisi eraldatud rakendusi. T\u00f6\u00f6riistade komplekt on kirjutatud Rust keeles ning haavatavus tuleneb loogilisest veast, mis esineb m\u00e4luaadressimise reeglite m\u00e4\u00e4ratlemisel Cranelift koodigeneraatoris, mis t\u00f5lgib arhitektuurist s\u00f5ltumatu vaheesituse t\u00e4idetavaks masinkoodiks x86_64 arhitektuurile. <\/p>\n

Eelk\u00f5ige arvutati WebAssembly rakenduste jaoks 35-bitised efektiivsed aadressid, mitte WebAssembly lubatud 33-bitised aadressid, mis t\u00f5stis virtuaalse m\u00e4lu lugemise ja kirjutamise operatsioonide lubatud piiri 34 GB-ni, samal ajal kui liivakasti seadistused pakuvad kaitset 6 GB ulatuses aluseks oleva aadressi j\u00e4rgi. Tulemuseks oli, et virtuaalse m\u00e4lu vahemik 6 kuni 34 GB aluseks olevast aadressist oli WebAssembly rakendustest lugemiseks ja kirjutamiseks saadaval. Selles m\u00e4lus v\u00f5ivad asuda muud WebAssembly keskkonnad v\u00f5i WebAssembly t\u00f6\u00f6aegkomponendid. <\/p>\n

Kui Wasmtime versiooni uuendamine pole v\u00f5imalik, mainitakse t\u00f5rke blokeerimise \u00fcmbermineku v\u00f5imalusena, et m\u00e4rkida suvand «Config::static_memory_maximum_size(0)», et aktiveerida h\u00e4davajalik eraldi piiride kontroll igasuguse juurdep\u00e4\u00e4su korral lineaarsele m\u00e4lule (mis toob kaasa m\u00e4rkimisv\u00e4\u00e4rse j\u00f5udluse languse). Teine v\u00f5imalus on kasutada seadistust «Config::static_memory_guard_size(1 < 36)», et suurendada membraanile asetatavate valvelehtede (Guard Page, mille korral juurdep\u00e4\u00e4su korral genereeritakse erand) arvu probleemsetes vahemikes virtuaalses m\u00e4lus (mis toob kaasa suure hulga virtuaalse m\u00e4lumahtude reserveerimise ja piirangu samal ajal toimivate WebAssembly rakenduste arvule).
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0445 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\u0445 Wasmtime 6.0.1, 5.0.1 \u0438 4.0.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-26489), \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0437\u0430\u043f\u0438\u0441\u044c \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u043f\u0430\u043c\u044f\u0442\u0438 \u0432\u043d\u0435 \u0433\u0440\u0430\u043d\u0438\u0446\u044b, \u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u043e\u0439 \u0434\u043b\u044f \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e WebAssembly-\u043a\u043e\u0434\u0430, \u0447\u0442\u043e \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u043e \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u043c \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0432\u043d\u0435 \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f WASI. Wasmtime \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 runtime \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f WebAssembly-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0441 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f\u043c\u0438 WASI […]<\/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-107183","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47Kriitiline haavatavus Wasmtime'is, WebAssembly rakenduste run-time | ProHoster","description":"Wasmtime 6.0.1, 5.0.1 ja 4.0.1 parandustesse on lisatud haavatavus (CVE-2023-26489), millele on m\u00e4\u00e4ratud kriitiline ohutaseme. See haavatavus v\u00f5imaldab andmete kirjutamist m\u00e4lu alale, mis on v\u00e4ljaspool isoleeritud WebAssembly-koodi lubatud piire, mida r\u00fcndaja v\u00f5ib potentsiaalselt kasutada oma koodi t\u00e4itmiseks v\u00e4ljaspool WASI isoleeritud keskkonda. Wasmtime on run-time WebAssembly rakenduste k\u00e4itamiseks WASI laiendustega.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/kriticheskaya-uyazvimost-v-wasmtime-runtime-dlya-webassembly-prilozhenij","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 Wasmtime, runtime \u0434\u043b\u044f WebAssembly-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 | ProHoster","og:description":"\u0412 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0445 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\u0445 Wasmtime 6.0.1, 5.0.1 \u0438 4.0.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-26489), \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0437\u0430\u043f\u0438\u0441\u044c \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u043f\u0430\u043c\u044f\u0442\u0438 \u0432\u043d\u0435 \u0433\u0440\u0430\u043d\u0438\u0446\u044b, \u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u043e\u0439 \u0434\u043b\u044f \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e WebAssembly-\u043a\u043e\u0434\u0430, \u0447\u0442\u043e \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u043e \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u043c \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0432\u043d\u0435 \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f WASI. Wasmtime \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 runtime \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f WebAssembly-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0441 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f\u043c\u0438 WASI","og:url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/kriticheskaya-uyazvimost-v-wasmtime-runtime-dlya-webassembly-prilozhenij","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2023-03-10T16:48:11+00:00","article:modified_time":"2023-03-13T10:06:39+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/107183","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/comments?post=107183"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/107183\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/media?parent=107183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/categories?post=107183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/tags?post=107183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}