{"id":182837,"date":"2026-08-11T04:54:59","date_gmt":"2026-08-11T02:54:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/sctphantom-uyazvimost-v-yadre-linux-predostavlyayushhaya-root-dostup-i-vyhod-iz-kontejnera"},"modified":"2026-08-11T04:54:59","modified_gmt":"2026-08-11T02:54:59","slug":"sctphantom-uyazvimost-v-yadre-linux-predostavlyayushhaya-root-dostup-i-vyhod-iz-kontejnera","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/sctphantom-uyazvimost-v-yadre-linux-predostavlyayushhaya-root-dostup-i-vyhod-iz-kontejnera","title":{"rendered":"SCTPhantom \u2014 een kwetsbaarheid in de Linux-kernel die roottoegang en ontsnapping uit een container biedt.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

In de implementatie van het SCTP-protocol, aangeboden in de Linux-kernel, is een kwetsbaarheid (CVE-2026-64564) ontdekt die een lokale gebruiker in staat stelt om root-rechten in het systeem te verkrijgen. Onder andere stelt de kwetsbaarheid een aanvaller in staat om root-toegang tot het hoofdsysteem te krijgen door een exploit in een ge\u00efsoleerde container uit te voeren. Een prototype van de exploit is voorbereid, waarvan de werking is gedemonstreerd in Debian 13, Rocky Linux 9, RHEL 9 en Ubuntu 24.04 met kernels 5.14, 6.6, 6.8 en 6.12. <\/p>\n

De kwetsbaarheid wordt veroorzaakt door het toegang krijgen tot al vrijgegeven geheugen in de code voor dynamische herconfiguratie van SCTP-adressen (ASCONF). De kernel cacheert een verwijzing naar het transport (asconf->transport) die in het pakket is aangegeven, maar het geheugen dat aan deze verwijzing is gekoppeld kan worden gewist, terwijl de verwijzing naar het al vrijgegeven geheugen nog steeds wordt gebruikt bij de verwerking van andere opdrachten. De aanval wordt uitgevoerd door een specifieke reeks ASCONF-commando's voor adresherconfiguratie naar een lokale socket te sturen: eerst wordt een DEL-IP-pakket verzonden om het transport voor een specifiek IP te verwijderen, gevolgd door een DEL-IP-pakket met een masker van 0.0.0.0, waarvan de verwerking zal leiden tot het hergebruik van de overgebleven dangling pointer. <\/p>\n

De kwetsbaarheid is het gevolg van een fout die 18 jaar geleden in kernel 2.6.25 (2008) is gemaakt en die in de versies 6.6.148, 6.12.101, 6.18.42, 7.1.6 en 7.2-rc5 is verholpen. De status van het verhelpen van kwetsbaarheden in de distributies kan worden beoordeeld op deze pagina's: Debian, Ubuntu, SUSE\/openSUSE, RHEL, Gentoo, Arch, Fedora.
\n
Bron: 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":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182837","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\n","aioseo_head_json":{"title":"\ud83e\udd47SCTPhantom \u2014 kwetsbaarheid in de Linux-kernel die root-toegang en ontsnapping uit de container biedt | ProHoster","description":"In de implementatie van het SCTP-protocol, aangeboden in de Linux-kernel, is een kwetsbaarheid (CVE-2026-64564) ontdekt die een lokale gebruiker in staat stelt om root-rechten in het systeem te 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