CVE-2011-0542 – fuse: unprivileged user can unmount arbitrary locations via symlink attack

https://notcve.org/view.php?id=CVE-2011-0542

fusermount in fuse 2.8.5 and earlier does not perform a chdir to / before performing a mount or umount, which allows local users to unmount arbitrary directories via unspecified vectors. Fusermount en Fuse v2.8.5 y anteriores no realizar un chdir a / después de realizar el montado o desmontado, lo que permite a usuarios locales desmontar directorios de su elección a través de vectores no especificados. • http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse%3Ba=commit%3Bh=1e7607ff89c65b005f69e27aeb1649d624099873 http://www.openwall.com/lists/oss-security/2011/02/02/2 http://www.openwall.com/lists/oss-security/2011/02/03/5 http://www.openwall.com/lists/oss-security/2011/02/08/4 https://access.redhat.com/security/cve/CVE-2011-0542 https://bugzilla.redhat.com/show_bug.cgi?id=651183 • CWE-264: Permissions, Privileges, and Access Controls •