CVE-2009-1072 – kernel: nfsd should drop CAP_MKNOD for non-root

https://notcve.org/view.php?id=CVE-2009-1072

nfsd in the Linux kernel before 2.6.28.9 does not drop the CAP_MKNOD capability before handling a user request in a thread, which allows local users to create device nodes, as demonstrated on a filesystem that has been exported with the root_squash option. nfsd en el Kernel de Linux anteriores a la v2.6.28.9 no detiene la capacidad de CAP_MKNOD antes del manejo de una petición de usuario en un hilo, lo que permite a usuarios locales crear nodos de dispositivo, como se ha demostrado en un sistema de ficheros que ha sido exportado con la opción root_squash. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=76a67ec6fb79ff3570dcb5342142c16098299911 http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html http://secunia.com/advisories/34422 http://secunia.com/advisories/34432 http://sec • CWE-16: Configuration •