{"id":36475,"date":"2019-10-31T22:11:51","date_gmt":"2019-10-31T19:11:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vo-freebsd-ustraneno-6-uyazvimostej\/"},"modified":"2019-10-31T22:11:51","modified_gmt":"2019-10-31T19:11:51","slug":"vo-freebsd-ustraneno-6-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/vo-freebsd-ustraneno-6-uyazvimostej","title":{"rendered":"A FreeBSD-ben 6 sebezhet\u0151s\u00e9get jav\u00edtottak","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A FreeBSD-ben hat sebezhet\u0151s\u00e9get jav\u00edtottak, amelyek lehet\u0151v\u00e9 tett\u00e9k a rendszeren bel\u00fcli jogosults\u00e1gok n\u00f6vel\u00e9s\u00e9t vagy a kernel adataihoz val\u00f3 hozz\u00e1f\u00e9r\u00e9st. A probl\u00e9m\u00e1kat a 12.0-RELEASE-p8, 11.2-RELEASE-p12 \u00e9s 11.3-RELEASE-p1 friss\u00edt\u00e9sek jav\u00edtott\u00e1k.<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/freebsd-announce@freebsd.org\/msg00899.html\">CVE-2019-5606<\/a><\/noindex> \u2014 A bug in the close call handler for file descriptors created via the posix_openpt system call can lead to writes in already freed areas of kernel memory (write-after-free). A local attacker can exploit this vulnerability to gain root privileges or escape from a jail environment;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/freebsd-announce@freebsd.org\/msg00900.html\">CVE-2019-0053<\/a><\/noindex> \u2014 The absence of proper validation of values when processing environment variables in the telnet client code may result in a buffer overflow when connecting to a malicious server, allowing an attack to execute code on the client side;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/freebsd-announce@freebsd.org\/msg00901.html\">CVE-2019-5605<\/a><\/noindex> \u2014 A bug in the freebsd32_ioctl implementation can lead to kernel memory leaks, potentially containing residual data from the terminal buffer or file cache;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/freebsd-announce@freebsd.org\/msg00902.html\">CVE-2019-5603<\/a><\/noindex> \u2014 The possibility of initiating a counter overflow in the pseudo-filesystem mqueuefs, which can be used to gain access to files, directories, and sockets of other processes belonging to different users. This issue may also be exploited to escape from a jail, and, if root access is available in the jail, can be used to gain root privileges in the host system;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/freebsd-announce@freebsd.org\/msg00903.html\">CVE-2019-5604<\/a><\/noindex> \u2014 A bug in the value-checking of the parameters \u2018epid\u2019 and \u2018streamid\u2019 in the XHCI device emulation code in the bhyve hypervisor allows for determining memory values outside of the allocated buffer or can cause system crashes;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/freebsd-announce@freebsd.org\/msg00904.html\">CVE-2019-5607<\/a><\/noindex> \u2014 A leak of the reference counter for UNIX socket descriptors used for transferring privileges between processes can be exploited to gain root access or escape from a jail environment.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Forr\u00e1s: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51167\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u043e FreeBSD \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e \u0448\u0435\u0441\u0442\u044c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0438\u043b\u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0434\u0430\u043d\u043d\u044b\u043c \u044f\u0434\u0440\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u044b \u0432 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\u0445 12.0-RELEASE-p8, 11.2-RELEASE-p12 \u0438 11.3-RELEASE-p1. CVE-2019-5606 &#8212; \u043e\u0448\u0438\u0431\u043a\u0430 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0435 \u0432\u044b\u0437\u043e\u0432\u0430 close \u0434\u043b\u044f \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0445 \u0434\u0435\u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0440\u043e\u0432, \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0445 \u0447\u0435\u0440\u0435\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0439 \u0432\u044b\u0437\u043e\u0432 posix_openpt, \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0437\u0430\u043f\u0438\u0441\u0438 \u0432 \u0443\u0436\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0451\u043d\u043d\u044b\u0435 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0430\u043c\u044f\u0442\u0438 \u044f\u0434\u0440\u0430 (write-after-free). \u041b\u043e\u043a\u0430\u043b\u044c\u043d\u044b\u0439 \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a \u043c\u043e\u0436\u0435\u0442 [&hellip;]<\/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-36475","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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