{"id":53560,"date":"2019-12-04T00:00:00","date_gmt":"2019-12-03T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/15-uyazvimostej-v-usb-drajverah-postavlyaemyh-v-yadre-linux"},"modified":"2020-02-18T14:01:28","modified_gmt":"2020-02-18T11:01:28","slug":"15-uyazvimostej-v-usb-drajverah-postavlyaemyh-v-yadre-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/15-uyazvimostej-v-usb-drajverah-postavlyaemyh-v-yadre-linux","title":{"rendered":"15 s\u00e5rbarheder i USB-drivere, der leveres med Linux-kernen","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Andrey Konovalov<\/a><\/noindex> from Google udgav<\/a><\/noindex> Rapport om opdagelse af 15 nye s\u00e5rbarheder (CVE-2019-19523 \u2013 CVE-2019-19537) i USB-drivere, der tilbydes i Linux-kernen. Dette er den tredje udgave af problemer, fundet under fuzzing-testning af USB-stakken i pakken. syzkaller<\/a><\/noindex> \u2014 tidligere n\u00e6vnte denne forsker allerede<\/a><\/noindex> reported<\/a><\/noindex> 29 vulnerabilities. <\/p>\n

This time, the list includes only vulnerabilities caused by accessing already freed memory areas (use-after-free) or leading to data leaks from kernel memory. Problems that can be exploited for denial of service are not included in the report. The vulnerabilities can potentially be exploited when specially crafted USB devices are connected to the computer. Fixes for all issues mentioned in the report have already been included in the kernel, but some excluded from the report fejlen<\/a><\/noindex> remain unfixed.<\/p>\n

De mest farlige s\u00e5rbarheder af typen \u201euse-after-free\u201c, der kan f\u00f8re til udf\u00f8relse af ondsindet kode, er blevet rettet i driverne adutux, ff-memless, ieee802154, pn533, hiddev, iowarrior, mcba_usb og yurex. Under CVE-2019-19532 er 14 s\u00e5rbarheder i HID-drivere blevet reduceret, for\u00e5rsaget af fejl, der muligg\u00f8r skrivning uden for buffergr\u00e6nsen (out-of-bounds write). I driverne ttusb_dec, pcan_usb_fd og pcan_usb_pro er der identificeret problemer, der f\u00f8rer til datal\u00e6kage fra kernens hukommelse. I USB-stakkens kode til h\u00e5ndtering af tegnede enheder er der identificeret et problem (CVE-2019-19537), for\u00e5rsaget af en race-tilstand.<\/p>\n

It is also worth noting
\nthe detection of<\/a><\/noindex> four vulnerabilities (CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901) in the driver for Marvell wireless chips, which can lead to buffer overflows. The attack can be executed remotely by sending specially formatted frames when connecting to a malicious access point. The most likely threat is a remote denial of service (kernel crash), but the possibility of code execution in the system cannot be excluded.<\/p>\n

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

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

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[…]<\/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-53560","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\udd4715 vulnerabilities in USB drivers provided in the Linux kernel | ProHoster","description":"Andrey Konovalov from Google","canonical_url":"https:\/\/prohoster.info\/da\/blog\/news\/15-uyazvimostej-v-usb-drajverah-postavlyaemyh-v-yadre-linux","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"da_DK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c 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