CVE-2012-3375

The epoll_ctl system call in fs/eventpoll.c in the Linux kernel before 3.2.24 does not properly handle ELOOP errors in EPOLL_CTL_ADD operations, which allows local users to cause a denial of service (file-descriptor consumption and system crash) via a crafted application that attempts to create a circular epoll dependency. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1083.

🔗 References (18)

• secalert@redhathttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d518074a952d33d47c428419693f63389547e9
• secalert@redhathttp://secunia.com/advisories/51164
• secalert@redhathttp://ubuntu.com/usn/usn-1529-1
• secalert@redhathttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
• secalert@redhathttp://www.openwall.com/lists/oss-security/2012/07/04/2
• secalert@redhathttp://www.securitytracker.com/id?1027237
• secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=837502
• secalert@redhathttps://downloads.avaya.com/css/P8/documents/100165733
• secalert@redhathttps://github.com/torvalds/linux/commit/13d518074a952d33d47c428419693f63389547e9
• af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d518074a952d33d47c428419693f63389547e9
• af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/51164
• af854a3a-2127-422b-91ae-364da2661108http://ubuntu.com/usn/usn-1529-1
• af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
• af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/07/04/2
• af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1027237