{"id":183167,"date":"2026-08-28T16:53:41","date_gmt":"2026-08-28T14:53:41","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/uyazvimosti-v-linux-i-freebsd-pozvolyayushhie-poluchit-root-dostup-v-sisteme"},"modified":"2026-08-28T16:53:43","modified_gmt":"2026-08-28T14:53:43","slug":"linux-and-freebsd-vulnerabilities-allowing-root-access","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/linux-and-freebsd-vulnerabilities-allowing-root-access","title":{"rendered":"Vulnerabilities in Linux and FreeBSD that allow root access in the system","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>W FreeBSD naprawiono 8 podatno\u015bci, kt\u00f3re umo\u017cliwiaj\u0105 podniesienie uprawnie\u0144 w systemie. Podatno\u015bci zosta\u0142y usuni\u0119te w aktualizacjach FreeBSD 15.1-RELEASE-p3, FreeBSD 15.0-RELEASE-p13 i 14.4-RELEASE-p9.   <\/p>\n<ul>\n<li class=\"l\"> CVE-2026-58094 \u2014 stan wy\u015bcigu w realizacji operacji ioctl FIOSSHMLPGCNF, u\u017cywanej do ustawiania rozmiaru stron pami\u0119ci dzielonej. Problem wynika z braku blokady podczas sprawdzania zmiany rozmiaru, co umo\u017cliwia\u0142o uzyskanie niepoprawnych parametr\u00f3w obiektu przez wysy\u0142anie dw\u00f3ch r\u00f3wnoleg\u0142ych \u017c\u0105da\u0144 o r\u00f3\u017cnym rozmiarze.\n<li class=\"l\"> CVE-2026-58093 \u2014 dost\u0119p do pami\u0119ci po jej zwolnieniu w realizacji ioctl TIOCSCTTY, u\u017cywanego do zarz\u0105dzania pseudoterminalem. Problem wynika z nieprawid\u0142owego zarz\u0105dzania blokadami.\n<li class=\"l\"> CVE-2026-58095, CVE-2026-58096, CVE-2026-58097 \u2014 problemy w realizacji protoko\u0142u PPP (Point-to-Point Protocol), spowodowane nieprawid\u0142owym sprawdzaniem rozmiaru przetwarzanych parametr\u00f3w.\n<li class=\"l\"> CVE-2026-58092 \u2014 b\u0142\u0105d logiczny w module mac_do, kt\u00f3ry zapewnia funkcjonalno\u015b\u0107 uruchamiania polece\u0144 jako inny u\u017cytkownik. Problem wynika z zmiany struktury przechowywania informacji o uprawnieniach u\u017cytkownik\u00f3w \u2014 g\u0142\u00f3wny identyfikator grupy u\u017cytkownika zosta\u0142 przeniesiony do osobnej struktury, jednak w funkcji group_is_primary() zapomniano uwzgl\u0119dni\u0107 t\u0119 zmian\u0119, przez co nadal pobierano informacje na podstawie starego przesuni\u0119cia.\n<li class=\"l\"> CVE-2026-58091 \u2014 dost\u0119p do pami\u0119ci po jej zwolnieniu w realizacji ioctl SNDCTL_DSP_SYNCSTART, u\u017cywanego do synchronizacji uruchamiania odtwarzania na wielu urz\u0105dzeniach audio. Luka wynika z nieprawid\u0142owego zarz\u0105dzania blokadami i objawia si\u0119 w systemach z wieloma urz\u0105dzeniami audio.\n<li class=\"l\"> CVE-2026-58090 \u2014 dost\u0119p do pami\u0119ci po jej zwolnieniu w realizacji gniazd UNIX, pojawiaj\u0105cy si\u0119 przy przetwarzaniu wiadomo\u015bci SOCK_STREAM.\n<li class=\"l\"> CVE-2026-58089 \u2014 b\u0142\u0105d logiczny w sterowniku hwpmc, przeznaczonym do monitorowania wydajno\u015bci, przez co zbieranie statystyk nie wy\u0142\u0105cza\u0142o si\u0119 po podniesieniu uprawnie\u0144 w czasie wykonywania proces\u00f3w suid root. Problem pozwala zwyk\u0142emu u\u017cytkownikowi na \u015bledzenie aktywno\u015bci w procesach o podwy\u017cszonych uprawnieniach.\n<li class=\"l\"> CVE-2026-18798, CVE-2026-54874, CVE-2026-63072, CVE-2026-63073, CVE-2026-63074, CVE-2026-63075, CVE-2026-63076 \u2014 luki w bibliotece openssl, spowodowane przepe\u0142nieniem bufora, podw\u00f3jnym zwolnieniem pami\u0119ci, problemami z formatowaniem \u0142a\u0144cucha i dereferencj\u0105 wska\u017anika NULL. Potencjalnie niekt\u00f3re z problem\u00f3w mog\u0105 umo\u017cliwia\u0107 zdalne wykonywanie kodu.    <\/ul>\n<p>W j\u0105drze Linux zidentyfikowano kilka niebezpiecznych problem\u00f3w, kt\u00f3re pozwalaj\u0105 lokalnemu u\u017cytkownikowi uzyska\u0107 uprawnienia root:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2026-53361 \u2014 odwo\u0142anie do pami\u0119ci po jej zwolnieniu w implementacji gniazd AF_UNIX. Opublikowano publicznie exploit, kt\u00f3ry umo\u017cliwia wyj\u015bcie z izolowanego kontenera. Dzia\u0142anie exploita zosta\u0142o zademonstrowane w Ubuntu 24.04, RHEL 10 i Debian 13 z j\u0105drami Linux 6.8, 6.12, 6.14 i 6.17. Problem zosta\u0142 rozwi\u0105zany w aktualizacjach j\u0105dra 7.1.0, 6.18.38, 6.12.95 i 6.6.144.\n<li class=\"l\"> CVE-2026-72137 \u2014 podw\u00f3jne zwolnienie pami\u0119ci w module nat_keepalive. Problem wyst\u0119puje od j\u0105dra 6.11 i zosta\u0142 rozwi\u0105zany w wydaniach 7.2.0, 6.12.101, 6.18.40 i 7.1.5. Opublikowano publicznie dzia\u0142aj\u0105cy exploit, kt\u00f3ry pozwala uzyska\u0107 uprawnienia root w systemie.\n<li class=\"l\"> Luki (CVE nie przypisany) w systemie plik\u00f3w eCryptfs, kt\u00f3re potencjalnie mog\u0105 prowadzi\u0107 do wykonania kodu na poziomie j\u0105dra podczas przetwarzania specjalnie sformatowanych zaszyfrowanych plik\u00f3w.\n<li class=\"l\"> Luka (CVE nie przypisany) w module ntfs3, kt\u00f3ra umo\u017cliwia podstawienie pliku wykonywalnego z flag\u0105 suid root podczas montowania specjalnie sformatowanego obrazu systemu plik\u00f3w (przyk\u0142ad eksploatacji luki do uzyskania uprawnie\u0144 root podczas automatycznego montowania pami\u0119ci USB).\n<li class=\"l\"> W sierpniu ujawniono informacje o 1668 lukach w j\u0105drze Linux.    <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=66158\">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 8 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0434\u0430\u044e\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \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. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\u0445 FreeBSD 15.1-RELEASE-p3, FreeBSD 15.0-RELEASE-p13 \u0438 14.4-RELEASE-p9. CVE-2026-58094 &#8212; \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0433\u043e\u043d\u043a\u0438 \u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 ioctl-\u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 FIOSSHMLPGCNF, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0434\u043b\u044f \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u044b \u0440\u0430\u0437\u0434\u0435\u043b\u044f\u0435\u043c\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0432\u044b\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 \u043f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0440\u0430\u0437\u043c\u0435\u0440\u0430, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u043b\u043e \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0434\u0432\u0443\u0445 \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183167","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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