{"id":168710,"date":"2026-04-14T17:12:53","date_gmt":"2026-04-14T15:12:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-python-bibliotekah-lzma-bz2-i-gzip-potenczialno-privodyashhaya-k-vypolneniyu-koda"},"modified":"2026-04-14T17:12:53","modified_gmt":"2026-04-14T15:12:53","slug":"uyazvimost-v-python-bibliotekah-lzma-bz2-i-gzip-potenczialno-privodyashhaya-k-vypolneniyu-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/uyazvimost-v-python-bibliotekah-lzma-bz2-i-gzip-potenczialno-privodyashhaya-k-vypolneniyu-koda","title":{"rendered":"Vulnerabilidade nas bibliotecas Python lzma, bz2 e gzip, que potencialmente pode levar \u00e0 execu\u00e7\u00e3o de c\u00f3digo","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nos classes fornecidas com o CPython para descompacta\u00e7\u00e3o de dados nos formatos lzma, bz2 e gzip (lzma.LZMADecompressor, bz2.BZ2Decompressor e gzip.GzipFile) apresentaram uma vulnerabilidade (CVE-2026-6100) que leva a acessos \u00e0 mem\u00f3ria ap\u00f3s sua libera\u00e7\u00e3o. A gravidade do problema foi classificada como cr\u00edtica (9.1 de 10) \u2014 se explorada com sucesso, a vulnerabilidade pode resultar em vazamento de informa\u00e7\u00f5es da mem\u00f3ria do processo ou na execu\u00e7\u00e3o de c\u00f3digo malicioso durante a descompacta\u00e7\u00e3o de dados especialmente formatados. A corre\u00e7\u00e3o est\u00e1 dispon\u00edvel at\u00e9 agora na forma de um patch. <\/p>\n

O problema se manifesta ap\u00f3s a conclus\u00e3o da opera\u00e7\u00e3o de aloca\u00e7\u00e3o de mem\u00f3ria com um erro que ocorre devido \u00e0 falta de mem\u00f3ria (para que a explora\u00e7\u00e3o da vulnerabilidade seja bem-sucedida, o atacante deve criar condi\u00e7\u00f5es que esgotem a mem\u00f3ria dispon\u00edvel para o processo). O acesso \u00e0 mem\u00f3ria j\u00e1 liberada ocorre em aplica\u00e7\u00f5es que reutilizam uma inst\u00e2ncia de objeto ap\u00f3s a devolu\u00e7\u00e3o de um erro durante o processo de descompress\u00e3o. Aplica\u00e7\u00f5es que criam uma nova inst\u00e2ncia do objeto a cada chamada n\u00e3o est\u00e3o vulner\u00e1veis.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432\u0435 CPython \u043a\u043b\u0430\u0441\u0441\u0430\u0445 \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u043a\u0438 \u0441\u0436\u0430\u0442\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0430\u0445 lzma, bz2 \u0438 gzip (lzma.LZMADecompressor, bz2.BZ2Decompressor \u0438 gzip.GzipFile) \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2026-6100), \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0430\u044f \u043a \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044e \u043a \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u043e\u0441\u043b\u0435 \u0435\u0451 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d 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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-168710","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\udd47Vulnerabilidade nas bibliotecas Python lzma, bz2 e gzip, potencialmente levando \u00e0 execu\u00e7\u00e3o de c\u00f3digo | ProHoster","description":"Foi identificada uma vulnerabilidade (CVE-2026-6100) nas classes de descompress\u00e3o de dados comprimidos do CPython nos formatos lzma, bz2 e gzip (lzma.LZMADecompressor, bz2.BZ2Decompressor e gzip.GzipFile), levando a um acesso 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\u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 | ProHoster","og:description":"\u0412 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432\u0435 CPython \u043a\u043b\u0430\u0441\u0441\u0430\u0445 \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u043a\u0438 \u0441\u0436\u0430\u0442\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0430\u0445 lzma, bz2 \u0438 gzip (lzma.LZMADecompressor, bz2.BZ2Decompressor \u0438 gzip.GzipFile) \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2026-6100), \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0430\u044f \u043a \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044e 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