{"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\/cs\/blog\/news\/obnovlenie-svobodnogo-antivirusnogo-paketa-clamav-0-101-3","title":{"rendered":"Aktualizace bezplatn\u00e9ho antivirov\u00e9ho bal\u00ed\u010dku ClamAV 0.101.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Cisco p\u0159edstavila<\/a><\/noindex> Opraven\u00e1 verze voln\u011b dostupn\u00e9ho antivirov\u00e9ho bal\u00ed\u010dku ClamAV 0.101.3, ve kter\u00e9 byla odstran\u011bna zranitelnost umo\u017e\u0148uj\u00edc\u00ed iniciaci odm\u00edtnut\u00ed slu\u017eby prost\u0159ednictv\u00edm p\u0159enosu speci\u00e1ln\u011b upraven\u00e9ho zip archivu jako p\u0159\u00edlohy. <\/p>\n

Probl\u00e9m<\/a><\/noindex> je variantou ne-rekurzivn\u00ed 'zip-bomba'<\/a><\/noindex>, jej\u00ed\u017e rozbalen\u00ed vy\u017eaduje velmi dlouh\u00fd \u010das a zdroje. Podstatou metody je um\u00edst\u011bn\u00ed do archivu dat, kter\u00e1 umo\u017e\u0148uj\u00ed dos\u00e1hnout maxim\u00e1ln\u00edho pro form\u00e1t zip stupn\u011b komprese - p\u0159ibli\u017en\u011b 28 milion\u016fkr\u00e1t. Nap\u0159\u00edklad speci\u00e1ln\u011b p\u0159ipraven\u00fd zip-soubor o velikosti 10 MB povede k rozbalen\u00ed p\u0159ibli\u017en\u011b 281 TB dat, a 46 MB - 4,5 PB. <\/p>\n

Krom\u011b toho byla ve nov\u00e9 verzi aktualizov\u00e1na integrovan\u00e1 knihovna libmspack, ve kter\u00e9 bylo odstran\u011bno<\/a><\/noindex> doch\u00e1z\u00ed k p\u0159ete\u010den\u00ed bufferu (CVE-2019-1010305<\/a><\/noindex>), co\u017e vede k \u00faniku dat p\u0159i otev\u0159en\u00ed speci\u00e1ln\u011b upraven\u00e9ho chm souboru.<\/p>\n

Sou\u010dasn\u011b byla p\u0159edstavena beta verze nov\u00e9 v\u011btve ClamAV 0.102, ve kter\u00e9 byla funk\u010dnost pr\u016fhledn\u00e9ho skenov\u00e1n\u00ed otev\u00edran\u00fdch soubor\u016f (on-access scanning, kontrola p\u0159i otev\u0159en\u00ed souboru) p\u0159esunuta z clamd do samostatn\u00e9ho procesu clamonacc, kter\u00fd je realizov\u00e1n analogicky k clamdscan a clamav-milter. Tento \u00faprava umo\u017enila spou\u0161t\u011bn\u00ed clamd pod b\u011b\u017en\u00fdm u\u017eivatelsk\u00fdm \u00fa\u010dtem bez pot\u0159eby z\u00edsk\u00e1n\u00ed root privilegii.
\nV nov\u00e9 v\u011btvi byla tak\u00e9 p\u0159id\u00e1na podpora arch\u00edv\u016f egg (ESTsoft) a aplikace freshclam byla v\u00fdznamn\u011b p\u0159epracov\u00e1na, co\u017e p\u0159ineslo podporu pro HTTPS a mo\u017enost pr\u00e1ce se zrcadly, kter\u00e1 zpracov\u00e1vaj\u00ed po\u017eadavky na s\u00ed\u0165ov\u00fdch portech odli\u0161n\u00fdch od 80. <\/p>\n

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

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

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