{"id":102842,"date":"2022-01-02T15:36:38","date_gmt":"2022-01-02T13:36:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/%d0%b2%d1%8b%d0%bf%d1%83%d1%81%d0%ba-%d1%83%d1%82%d0%b8%d0%bb%d0%b8%d1%82%d1%8b-gnu-cflow-1-7"},"modified":"2022-01-02T15:36:38","modified_gmt":"2022-01-02T13:36:38","slug":"%d0%b2%d1%8b%d0%bf%d1%83%d1%81%d0%ba-%d1%83%d1%82%d0%b8%d0%bb%d0%b8%d1%82%d1%8b-gnu-cflow-1-7","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/%d0%b2%d1%8b%d0%bf%d1%83%d1%81%d0%ba-%d1%83%d1%82%d0%b8%d0%bb%d0%b8%d1%82%d1%8b-gnu-cflow-1-7","title":{"rendered":"Release of the GNU cflow utility 1.7.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

H\u00e1rom \u00e9v fejleszt\u00e9s ut\u00e1n megjelent a GNU cflow 1.7 seg\u00e9dprogram, amely a C nyelv\u0171 programok f\u00fcggv\u00e9nyh\u00edv\u00e1sainak vizu\u00e1lis gr\u00e1fj\u00e1nak elk\u00e9sz\u00edt\u00e9s\u00e9re szolg\u00e1l, \u00e9s amely egyszer\u0171s\u00edtheti az alkalmaz\u00e1s m\u0171k\u00f6d\u00e9s\u00e9nek logik\u00e1j\u00e1nak tanulm\u00e1nyoz\u00e1s\u00e1t. A gr\u00e1f csak a forr\u00e1sk\u00f3d elemz\u00e9s\u00e9n alapul, a program futtat\u00e1sa n\u00e9lk\u00fcl. T\u00e1mogatja a v\u00e9grehajt\u00e1si sz\u00e1lak k\u00f6zvetlen \u00e9s ford\u00edtott gr\u00e1fj\u00e1nak gener\u00e1l\u00e1s\u00e1t, valamint a k\u00f3df\u00e1jlok k\u00f6z\u00f6tti hivatkoz\u00e1sok list\u00e1inak el\u0151\u00e1ll\u00edt\u00e1s\u00e1t. <\/p>\n

A kiad\u00e1s k\u00fcl\u00f6nlegess\u00e9ge a \"dot\" kimeneti form\u00e1tum t\u00e1mogat\u00e1s\u00e1nak megval\u00f3s\u00edt\u00e1sa (\u00e2\u0080\u009e--format=dot\u00e2\u0080\u009d), amely lehet\u0151v\u00e9 teszi a DOT nyelven t\u00f6rt\u00e9n\u0151 eredm\u00e9nyk\u00e9pz\u00e9st a Graphviz csomagban t\u00f6rt\u00e9n\u0151 vizualiz\u00e1ci\u00f3hoz. Lehet\u0151v\u00e9 v\u00e1lt t\u00f6bb kezd\u0151 funkci\u00f3 megad\u00e1s\u00e1t az \u00e2\u0080\u009e--main\u00e2\u0080\u009d opci\u00f3k megism\u00e9tl\u00e9s\u00e9vel; minden egyes ilyen funkci\u00f3hoz k\u00fcl\u00f6n grafikon fog gener\u00e1l\u00f3dni. Emellett hozz\u00e1 lett adva az \u00e2\u0080\u009e--target=FUNCTION\u00e2\u0080\u009d opci\u00f3, amely lehet\u0151v\u00e9 teszi, hogy az eredm\u00e9ny grafikon csak a meghat\u00e1rozott funkci\u00f3kat tartalmaz\u00f3 \u00e1ggal legyen korl\u00e1tozva (a \u00e2\u0080\u009e--target\u00e2\u0080\u009d opci\u00f3t t\u00f6bbsz\u00f6r is meg lehet adni). A cflow-mode \u00fczemm\u00f3dban \u00faj navig\u00e1ci\u00f3s parancsok ker\u00fcltek bevezet\u00e9sre a grafikonon: \u00e2\u0080\u009ec\u00e2\u0080\u009d \u00e2\u0080\u0093 ugr\u00e1s a h\u00edv\u00f3 funkci\u00f3hoz, \u00e2\u0080\u009en\u00e2\u0080\u009d \u00e2\u0080\u0093 ugr\u00e1s a k\u00f6vetkez\u0151 funkci\u00f3hoz az adott be\u00e1gyaz\u00e1si szinten \u00e9s \u00e2\u0080\u009ep\u00e2\u0080\u009d \u00e2\u0080\u0093 ugr\u00e1s az ugyanazon be\u00e1gyaz\u00e1si szinten l\u00e9v\u0151 el\u0151z\u0151 funkci\u00f3hoz. <\/p>\n

Az \u00faj verzi\u00f3ban k\u00e9t, 2019-ben felfedezett sebezhet\u0151s\u00e9get is megsz\u00fcntettek, amelyek mem\u00f3riahib\u00e1hoz vezethettek a cflow \u00e1ltal speci\u00e1lisan form\u00e1zott forr\u00e1sk\u00f3dok feldolgoz\u00e1sa sor\u00e1n. Az els\u0151 sebezhet\u0151s\u00e9g (CVE-2019-16165) a mem\u00f3ria felszabad\u00edt\u00e1sa ut\u00e1ni hozz\u00e1f\u00e9r\u00e9s (use-after-free) \u00e1ltal okozott a parser k\u00f3dj\u00e1ban (reference funkci\u00f3 a parser.c-ben). A m\u00e1sodik sebezhet\u0151s\u00e9g (CVE-2019-16166) a nexttoken() f\u00fcggv\u00e9nyben tal\u00e1lhat\u00f3 puffert\u00falfoly\u00e1ssal kapcsolatos. A fejleszt\u0151k v\u00e9lem\u00e9nye szerint a megadott probl\u00e9m\u00e1k nem jelentenek biztons\u00e1gi kock\u00e1zatot, mivel az alkalmaz\u00e1s \u00f6sszeoml\u00e1s\u00e1val korl\u00e1toz\u00f3dnak.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u043e\u0441\u043b\u0435 \u0442\u0440\u0451\u0445 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0443\u0442\u0438\u043b\u0438\u0442\u044b GNU cflow 1.7, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0439 \u0434\u043b\u044f \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u043d\u0430\u0433\u043b\u044f\u0434\u043d\u043e\u0433\u043e \u0433\u0440\u0430\u0444\u0430 \u0432\u044b\u0437\u043e\u0432\u043e\u0432 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \u0432 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0430\u0445 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f 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\u043e\u0431\u0440\u0430\u0442\u043d\u044b\u0445 \u0433\u0440\u0430\u0444\u043e\u0432 \u043f\u043e\u0442\u043e\u043a\u043e\u0432 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f, \u0430 \u0442\u0430\u043a\u0436\u0435 […]<\/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-102842","post","type-post","status-publish","format-standard","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\udd47GNU cflow 1.7 kiad\u00e1s | ProHoster","description":"H\u00e1rom \u00e9v fejleszt\u00e9s ut\u00e1n megjelent a GNU cflow 1.7 seg\u00e9dprogram, amely a C nyelven \u00edrt programok 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