{"id":37147,"date":"2019-10-31T22:16:00","date_gmt":"2019-10-31T19:16:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novaya-uyazvimost-v-ghostscript\/"},"modified":"2019-10-31T22:16:00","modified_gmt":"2019-10-31T19:16:00","slug":"novaya-uyazvimost-v-ghostscript","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/novaya-uyazvimost-v-ghostscript","title":{"rendered":"Uus haavatavus Ghostscriptis.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V\u00f5imetus l\u00f5petada haavatavuste jada (1<\/a><\/noindex>, 2<\/a><\/noindex>, 3<\/a><\/noindex>, 4<\/a><\/noindex>, 5<\/a><\/noindex>, 6<\/a><\/noindex>) Ghostscript<\/a><\/noindex>, dokumentide t\u00f6\u00f6tlemise, muutmise ja genereerimise t\u00f6\u00f6riistakomplektis PostScripti ja PDF-formaatides. Nagu eelnevad haavatavused, uus probleem<\/a><\/noindex> (CVE-2019-10216<\/a><\/noindex>) v\u00f5imaldab spetsiaalselt vormindatud dokumentide t\u00f6\u00f6tlemisel m\u00f6\u00f6da minna eraldusre\u017eiimist «-dSAFER» (manipuleerimise kaudu «.buildfont1») ja saada juurdep\u00e4\u00e4s FS sisu, mida saab kasutada r\u00fcnnaku korraldamiseks, et k\u00e4itada s\u00fcsteemis suvalist koodi (nt lisades k\u00e4ske ~\/.bashrc v\u00f5i ~\/.profile). Parandus on saadaval kujul pat\u0161<\/a><\/noindex>. Pakettide v\u00e4rskenduste ilmumise j\u00e4lgimine on saadaval j\u00e4rgmistelt lehtedelt: Debian<\/a><\/noindex>, Fedora<\/a><\/noindex>, Ubuntu<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex>, RHEL<\/a><\/noindex>, Arch<\/a><\/noindex>, FreeBSD<\/a><\/noindex>. <\/p>\n

Tuletame meelde, et Ghostscript'i haavatavused kujutavad endast suurt ohtu, kuna seda paketti kasutatakse paljude tuntud rakenduste jaoks PostScripti ja PDF-formaatide t\u00f6\u00f6tlemiseks. N\u00e4iteks kutsub Ghostscript end v\u00e4lja t\u00f6\u00f6laual pisipiltide loomise, taustal andmete indekseerimise ja piltide konverteerimise protsessis. Paljuski piisab edukaks r\u00fcnnakuks lihtsalt kurjatiivaga faili \u00fcleslaadimisest v\u00f5i selle katalooge Nautiluses vaatamisest. Ghostscript'i haavatavusi saab \u00e4ra kasutada ka ImageMagicki ja GraphicsMagicki pildit\u00f6\u00f6tlejate kaudu, edastades neile JPEG- v\u00f5i PNG-faili, milles on pildi asemel PostScripti kood (sellist faili t\u00f6\u00f6deldakse Ghostscript'is, kuna MIME-t\u00fc\u00fcpi tuvastatakse sisu j\u00e4rgi, mitte toetudes faililaiendusele). <\/p>\n

<\/a><\/noindex><\/p>\n

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

\u041d\u0435 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0430\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0434\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 (1, 2, 3, 4, 5, 6) \u0432 Ghostscript, \u043d\u0430\u0431\u043e\u0440\u0435 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438, \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0438 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0430\u0445 PostScript \u0438 PDF. \u041a\u0430\u043a \u0438 \u043f\u0440\u043e\u0448\u043b\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043d\u043e\u0432\u0430\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 (CVE-2019-10216) \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u043e\u0431\u043e\u0439\u0442\u0438 \u0440\u0435\u0436\u0438\u043c \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 «-dSAFER» (\u0447\u0435\u0440\u0435\u0437 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u0441 «.buildfont1») \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u043c\u0443 \u0424\u0421, \u0447\u0442\u043e \u043c\u043e\u0436\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c 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