{"id":96936,"date":"2020-10-15T02:42:39","date_gmt":"2020-10-15T00:42:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/udalyonnaya-uyazimost-v-yadre-netbsd-ekspluatiruemaya-iz-lokalnoj-seti"},"modified":"2020-10-15T02:42:39","modified_gmt":"2020-10-15T00:42:39","slug":"udalyonnaya-uyazimost-v-yadre-netbsd-ekspluatiruemaya-iz-lokalnoj-seti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/udalyonnaya-uyazimost-v-yadre-netbsd-ekspluatiruemaya-iz-lokalnoj-seti","title":{"rendered":"Vuln\u00e9rabilit\u00e9 distante dans le noyau NetBSD, exploit\u00e9e depuis un r\u00e9seau local","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans NetBSD a \u00e9t\u00e9 corrig\u00e9e<\/a><\/noindex> CVE-2020-10174<\/a><\/noindex>, caus\u00e9e par l'absence de v\u00e9rification des limites de tampon lors du traitement des jumbo frames dans les pilotes pour les adaptateurs r\u00e9seau connect\u00e9s via USB. Ce probl\u00e8me entra\u00eene la copie d'une partie du paquet en dehors du tampon allou\u00e9 dans le cluster mbuf, ce qui peut potentiellement \u00eatre exploit\u00e9 pour ex\u00e9cuter un code malveillant au niveau du noyau en envoyant certains paquets depuis le r\u00e9seau local. Le correctif pour bloquer cette vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 apport\u00e9 le 28 ao\u00fbt, mais les informations \u00e0 ce sujet n'ont \u00e9t\u00e9 r\u00e9v\u00e9l\u00e9es que maintenant. Le probl\u00e8me concerne les pilotes atu, axe, axen, otus, run et ure.<\/p>\n

Pendant ce temps, dans la pile TCP\/IP de Windows une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 identifi\u00e9e<\/a><\/noindex> critique CVE-2020-10174<\/a><\/noindex>, permettant d'ex\u00e9cuter \u00e0 distance<\/a><\/noindex> le code malveillant via l'envoi d'un paquet ICMPv6 avec l'annonce de routeur IPv6 (RA, Router Advertisement).
\nVuln\u00e9rabilit\u00e9 se manifeste<\/a><\/noindex> \u00c0 partir de la mise \u00e0 jour 1709 pour Windows 10\/Windows Server 2019, qui a introduit la prise en charge de la transmission de configuration DNS via des paquets ICMPv6 RA, d\u00e9fini dans la sp\u00e9cification RFC 6106. Le probl\u00e8me est caus\u00e9 par une allocation incorrecte de m\u00e9moire pour le contenu du champ RDNSS lors de la transmission de valeurs de taille non standard (la taille des champs \u00e9tait interpr\u00e9t\u00e9e comme un multiple de 16, entra\u00eenant des probl\u00e8mes d'analyse et une allocation de 8 octets de m\u00e9moire en moins, les 8 octets suppl\u00e9mentaires \u00e9tant consid\u00e9r\u00e9s comme appartenant au champ suivant).<\/p>\n

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

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

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