{"id":125569,"date":"2025-05-25T15:05:07","date_gmt":"2025-05-25T13:05:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/udalyonnaya-uyazvimost-v-module-ksmbd-yadra-linux-vyyavlennaya-pri-pomoshhi-ai"},"modified":"2025-05-25T15:05:07","modified_gmt":"2025-05-25T13:05:07","slug":"udalyonnaya-uyazvimost-v-module-ksmbd-yadra-linux-vyyavlennaya-pri-pomoshhi-ai","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/udalyonnaya-uyazvimost-v-module-ksmbd-yadra-linux-vyyavlennaya-pri-pomoshhi-ai","title":{"rendered":"T\u00e1voli sebezhet\u0151s\u00e9g a Linux kernel ksmbd modulj\u00e1ban, amelyet mesters\u00e9ges intelligencia seg\u00edts\u00e9g\u00e9vel fedeztek fel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A ksmbd modulban, amely a Linux kernelbe integr\u00e1lt SMB protokollon alapul\u00f3 f\u00e1jlszervert k\u00edn\u00e1l, egy sebezhet\u0151s\u00e9g (CVE-2025-37899) ker\u00fclt el\u0151, amely potenci\u00e1lisan lehet\u0151v\u00e9 teszi a meghat\u00e1rozott csomagok k\u00fcld\u00e9s\u00e9vel a kernel szintj\u00e9n t\u00f6rt\u00e9n\u0151 k\u00f3d v\u00e9grehajt\u00e1s\u00e1t. Figyelemre m\u00e9lt\u00f3, hogy a probl\u00e9ma az OpenAI o3 AI-modell \u00e1ltal v\u00e9gzett k\u00f3delemz\u00e9s sor\u00e1n der\u00fclt f\u00e9nyre. Mivel a ksmbd modul teljes k\u00f3dja meghaladja a modell kontextus\u00e1nak megengedett m\u00e9ret\u00e9t, az ellen\u0151rz\u00e9s l\u00e9p\u00e9sr\u0151l l\u00e9p\u00e9sre t\u00f6rt\u00e9nt az SMB parancsok egyes megval\u00f3s\u00edt\u00e1sainak k\u00f3dj\u00e1ra, tipikus lek\u00e9rdez\u00e9sek felhaszn\u00e1l\u00e1s\u00e1val. <\/p>\n

A sebezhet\u0151s\u00e9g a m\u00e1r felszabad\u00edtott mem\u00f3ria (use-after-free) kezel\u00e9s\u00e9vel van \u00f6sszef\u00fcgg\u00e9sben az SMB \"logoff\" parancs kezel\u00e9s\u00e9ben: a sess->user strukt\u00far\u00e1t egy m\u00e1sik sz\u00e1l haszn\u00e1lta, amikor egy m\u00e1sik kapcsolaton kereszt\u00fcl \u00e9rkezett egy szesszi\u00f3 l\u00e9trehoz\u00e1s\u00e1ra vonatkoz\u00f3 k\u00e9r\u00e9s, amely a felszabad\u00edtott szesszi\u00f3hoz volt k\u00f6tve. Az ilyen jelleg\u0171 k\u00e9rd\u00e9sek feldolgoz\u00e1sa sor\u00e1n a smb2_sess_setup f\u00fcggv\u00e9ny futott, amely m\u00e1r felszabad\u00edtott sess->user strukt\u00far\u00e1ra hivatkozott. <\/p>\n

A sebezhet\u0151s\u00e9get a 6.15-rc5, 6.14.6, 6.12.28, 6.6.90, 6.1.138 friss\u00edt\u00e9sekben orvosolt\u00e1k. Az 5.15-\u00f6s \u00e1gon, amelybe a ksmbd modult bevett\u00e9k, a probl\u00e9ma nem jelentkezik. A sebezhet\u0151s\u00e9g elh\u00e1r\u00edt\u00e1s\u00e1nak nyomon k\u00f6vet\u00e9s\u00e9re a k\u00f6vetkez\u0151 oldalakon lehet: Debian, Ubuntu, Fedora, SUSE\/openSUSE, RHEL, Arch. <\/p>\n

A probl\u00e9m\u00e1t Sean Heelan, a Prodfiler k\u00f3dprofil\u00e1l\u00f3 platform l\u00e9trehoz\u00f3ja azonos\u00edtotta, aki a k\u00f3d optimaliz\u00e1l\u00e1s\u00e1ra \u00e9s biztons\u00e1gi auditok v\u00e9grehajt\u00e1s\u00e1ra szakosodott. Sean azt is m\u00e9rlegelte, hogy a modern AI-modellek mennyire k\u00e9sz\u00fcltek fel a biztons\u00e1gi auditok elv\u00e9gz\u00e9s\u00e9re, \u00e9s arra a k\u00f6vetkeztet\u00e9sre jutott, hogy az o3 modell jelent\u0151s el\u0151rel\u00e9p\u00e9st tett a k\u00f3d szerkezet\u00e9nek, logik\u00e1j\u00e1nak \u00e9s funkcionalit\u00e1s\u00e1nak elemz\u00e9s\u00e9ben \u00e9s meg\u00e9rt\u00e9s\u00e9ben. Megjegyezt\u00e9k, hogy a sebezhet\u0151s\u00e9g meghat\u00e1roz\u00e1sa \u00e9rdek\u00e9ben a modell k\u00e9pes volt egy \u00e9rvel\u00e9si l\u00e1ncot l\u00e9trehozni, figyelembe v\u00e9ve a p\u00e1rhuzamos kapcsolatok lehet\u0151s\u00e9g\u00e9t, szerverhez<\/a> \u00e9s az adatszerkezetek k\u00fcl\u00f6nb\u00f6z\u0151 szitu\u00e1ci\u00f3kban val\u00f3 haszn\u00e1lat\u00e1t. <\/p>\n

V\u00e9g\u00fcl a modell azonos\u00edtotta a k\u00f3dban azt a probl\u00e9m\u00e1s helyet, ahol a felszabad\u00edtott objektum egy m\u00e1sik sz\u00e1lban tov\u00e1bbra is el\u00e9rhet\u0151 maradt. E mellett a modell \u00f6n\u00e1ll\u00f3an tal\u00e1lta meg a probl\u00e9m\u00e1t csup\u00e1n egy \u00e1ltal\u00e1nos k\u00e9r\u00e9s alapj\u00e1n, amely a k\u00f3d sebezhet\u0151s\u00e9geinek ellen\u0151rz\u00e9s\u00e9re k\u00e9rte, kiemelve a l\u00f3g\u00f3 mutat\u00f3k \u00e9s a mem\u00f3ria felszabad\u00edt\u00e1sa ut\u00e1ni hivatkoz\u00e1sok ellen\u0151rz\u00e9s\u00e9t, mik\u00f6zben kiz\u00e1rta a hamis pozit\u00edv eredm\u00e9nyeket \u00e9s a hipotetikus probl\u00e9m\u00e1kat. <\/p>\n

Miel\u0151tt \u00faj sebezhet\u0151s\u00e9geket keresett volna, Sean k\u00fcl\u00f6nb\u00f6z\u0151 modelleket tesztelt a CVE-2025-37778 sebezhet\u0151s\u00e9g azonos\u00edt\u00e1sa \u00e9rdek\u00e9ben a ksmbd-ben, amelyet a manu\u00e1lis auditja sor\u00e1n kor\u00e1bban felfedezett, \u00e9s amely a 6.15-rc3 kernel friss\u00edt\u00e9s\u00e9ben ker\u00fclt kijav\u00edt\u00e1sra. Az o3 modell sikerrel teljes\u00edtette a feladatot, \u00e9s a manu\u00e1lis audithoz legk\u00f6zelebb \u00e1ll\u00f3 eredm\u00e9nyt mutatta, ezt k\u00f6vet\u0151en Sean a kor\u00e1bban ismeretlen sebezhet\u0151s\u00e9gek keres\u00e9s\u00e9re v\u00e1ltott.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043c\u043e\u0434\u0443\u043b\u0435 ksmbd, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u043c \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u0443\u044e \u0432 \u044f\u0434\u0440\u043e Linux \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u043d\u0430 \u0431\u0430\u0437\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 SMB, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-37899), \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u044f\u0434\u0440\u0430 \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u043e\u0432. \u041f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u043e, \u0447\u0442\u043e \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0431\u044b\u043b\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0432 \u0445\u043e\u0434\u0435 \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u043a\u043e\u0434\u0430 AI-\u043c\u043e\u0434\u0435\u043b\u044c\u044e OpenAI o3. \u0422\u0430\u043a \u043a\u0430\u043a \u043f\u043e\u043b\u043d\u044b\u0439 \u043a\u043e\u0434 \u043c\u043e\u0434\u0443\u043b\u044f ksmbd \u043f\u0440\u0435\u0432\u044b\u0448\u0430\u0435\u0442 \u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u044b\u0439 \u0434\u043b\u044f \u043c\u043e\u0434\u0435\u043b\u0438 \u0440\u0430\u0437\u043c\u0435\u0440 […]<\/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-125569","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\udd47T\u00e1voll\u00e9ti sebezhet\u0151s\u00e9g a Linux kernel ksmbd modulj\u00e1ban, amelyet AI seg\u00edts\u00e9g\u00e9vel fedeztek fel | ProHoster","description":"A ksmbd modulban, amely a Linux kernelbe integr\u00e1lt SMB protokoll alap\u00fa f\u00e1jlszerver megval\u00f3s\u00edt\u00e1st k\u00edn\u00e1l, sebezhet\u0151s\u00e9get (CVE-2025-37899) fedeztek fel, amely potenci\u00e1lisan lehet\u0151v\u00e9 teszi a k\u00f3d 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