{"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\/de\/blog\/news\/novaya-uyazvimost-v-ghostscript","title":{"rendered":"Neue Schwachstelle in Ghostscript","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Die Reihe von Sicherheitsanf\u00e4lligkeiten rei\u00dft nicht ab (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50370\">1<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50019\">2<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=49647\">3<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=49425\">4<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=49269\">5<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=49224\">6<\/a><\/noindex>) bei <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ghostscript.com\/doc\/Readme.htm\">Ghostscript<\/a><\/noindex>, einer Sammlung von Werkzeugen zur Bearbeitung, Umwandlung und Erstellung von Dokumenten im PostScript- und PDF-Format. Wie bei fr\u00fcheren Sicherheitsanf\u00e4lligkeiten <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/08\/12\/4\">Ein neues Problem<\/a><\/noindex> (<noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2019-10216\">CVE-2019-10216<\/a><\/noindex>) erm\u00f6glicht es, bei der Verarbeitung speziell formatierter Dokumente den Isolationsmodus &#171;-dSAFER&#187; (durch Manipulation mit &#171;.buildfont1&#187;) zu umgehen und Zugriff auf den Dateisysteminhalt zu erhalten, was f\u00fcr die Durchf\u00fchrung eines Angriffs zur Ausf\u00fchrung beliebigen Codes im System genutzt werden kann (zum Beispiel durch das Hinzuf\u00fcgen von Befehlen in ~\\\/..bashrc oder ~\\\/..profile). Eine Korrektur ist verf\u00fcgbar als <noindex><a rel=\"nofollow\" href=\"http:\/\/git.ghostscript.com\/?p=ghostpdl.git;a=commitdiff;h=5b85ddd19\">Patches<\/a><\/noindex>. Die Ver\u00f6ffentlichung von Paketupdates in den Distributionen kann auf diesen Seiten nachverfolgt werden: <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2019-10216\">Debian<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/bugzilla.redhat.com\/show_bug.cgi?id=1740198\">Fedora<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/people.canonical.com\/~ubuntu-security\/cve\/2019\/CVE-2019-10216.html\">Ubuntu<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/bugzilla.novell.com\/show_bug.cgi?id=CVE-2019-10216\">SUSE\\\/openSUSE<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/bugzilla.redhat.com\/show_bug.cgi?id=CVE-2019-10216\">RHEL<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/security.archlinux.org\/CVE-2019-10216\">Arch<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/www.vuxml.org\/freebsd\/\">FreeBSD<\/a><\/noindex>. <\/p>\n<p>Wir erinnern daran, dass Schwachstellen in Ghostscript eine erh\u00f6hte Gefahr darstellen, da dieses Paket in vielen beliebten Anwendungen zur Verarbeitung von PostScript- und PDF-Formaten verwendet wird. Beispielsweise wird Ghostscript bei der Erstellung von Miniaturen auf dem Desktop, bei der Hintergrundindizierung von Daten und der Umwandlung von Bildern aufgerufen. F\u00fcr einen erfolgreichen Angriff reicht es in vielen F\u00e4llen aus, einfach eine Datei mit einem Exploit hochzuladen oder das Verzeichnis mit ihr in Nautilus zu durchsuchen. Schwachstellen in Ghostscript k\u00f6nnen auch \u00fcber Bildverarbeitungsprogramme, die auf den Paketen ImageMagick und GraphicsMagick basieren, ausgenutzt werden, indem ein JPEG- oder PNG-Datei \u00fcbergeben wird, in der sich anstelle eines Bildes Code in PostScript befindet (eine solche Datei wird in Ghostscript verarbeitet, da der MIME-Typ nach dem Inhalt erkannt wird und nicht auf die Erweiterung angewiesen ist). <\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Quelle: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51288\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 &#171;-dSAFER&#187; (\u0447\u0435\u0440\u0435\u0437 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u0441 &#171;.buildfont1&#187;) \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 [&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":[702],"tags":[],"class_list":["post-37147","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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,\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/de\/blog\/news\/novaya-uyazvimost-v-ghostscript\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 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