{"id":36860,"date":"2019-10-31T22:14:20","date_gmt":"2019-10-31T19:14:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/obnovlenie-svobodnogo-antivirusnogo-paketa-clamav-0-101-3\/"},"modified":"2019-10-31T22:14:20","modified_gmt":"2019-10-31T19:14:20","slug":"obnovlenie-svobodnogo-antivirusnogo-paketa-clamav-0-101-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/obnovlenie-svobodnogo-antivirusnogo-paketa-clamav-0-101-3","title":{"rendered":"Atualiza\u00e7\u00e3o do pacote antiv\u00edrus livre ClamAV 0.101.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Cisco apresentou<\/a><\/noindex> uma vers\u00e3o corrigida do pacote antiv\u00edrus gratuito ClamAV 0.101.3, que corrige uma vulnerabilidade que permite iniciar uma nega\u00e7\u00e3o de servi\u00e7o atrav\u00e9s do envio de um arquivo zip especialmente formatado como anexo. <\/p>\n

O problema<\/a><\/noindex> \u00e9 uma variante bomba zip n\u00e3o recursiva<\/a><\/noindex>, cuja descompacta\u00e7\u00e3o requer um tempo e recursos muito grandes. A ess\u00eancia do m\u00e9todo est\u00e1 em incluir no arquivo dados que permitem alcan\u00e7ar a m\u00e1xima taxa de compress\u00e3o para o formato zip \u2014 cerca de 28 milh\u00f5es de vezes. Por exemplo, um arquivo zip especialmente preparado com 10 Mb levar\u00e1 \u00e0 descompacta\u00e7\u00e3o de cerca de 281 Tb de dados, enquanto 46 Mb \u2014 4,5 Pb. <\/p>\n

Al\u00e9m disso, a nova vers\u00e3o atualizou a biblioteca embutida libmspack, onde foram corrigidas<\/a><\/noindex> um estouro de buffer (CVE-2019-1010305<\/a><\/noindex>), levando a uma vaz\u00e3o de dados ao abrir um arquivo chm especialmente formatado.<\/p>\n

Ao mesmo tempo, uma vers\u00e3o beta da nova ramifica\u00e7\u00e3o ClamAV 0.102 foi apresentada, na qual a funcionalidade de verifica\u00e7\u00e3o de arquivos abertos (verifica\u00e7\u00e3o on-access, verifica\u00e7\u00e3o no momento da abertura do arquivo) foi transferida do clamd para um processo separado clamonacc, implementado de forma an\u00e1loga ao clamdscan e clamav-milter. Essa altera\u00e7\u00e3o possibilitou a opera\u00e7\u00e3o do clamd sob um usu\u00e1rio comum sem necessidade de privil\u00e9gios de root.
\nNa nova ramifica\u00e7\u00e3o, tamb\u00e9m foi adicionado suporte a arquivos egg (ESTsoft) e o programa freshclam foi significativamente reestruturado, agora com suporte a HTTPS e a capacidade de trabalhar com espelhos que processam solicita\u00e7\u00f5es em portas de rede diferentes de 80. <\/p>\n

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

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

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\u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0434\u043b\u044f \u0444\u043e\u0440\u043c\u0430\u0442\u0430 zip \u0441\u0442\u0435\u043f\u0435\u043d\u0438 \u0441\u0436\u0430\u0442\u0438\u044f — […]<\/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-36860","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\udd47Atualiza\u00e7\u00e3o do pacote antiv\u00edrus gratuito ClamAV 0.101.3 | 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