Description

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

References

http://article.gmane.org/gmane.linux.kernel/1105744

http://article.gmane.org/gmane.linux.kernel/1105888

http://article.gmane.org/gmane.linux.kernel/1106686

http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html

http://openwall.com/lists/oss-security/2011/03/02/1

http://openwall.com/lists/oss-security/2011/03/02/2

http://rhn.redhat.com/errata/RHSA-2012-0862.html

http://secunia.com/advisories/43522

http://secunia.com/advisories/48115

http://secunia.com/advisories/48410

http://secunia.com/advisories/48898

http://secunia.com/advisories/48964

http://www.osvdb.org/71265

https://bugzilla.redhat.com/show_bug.cgi?id=681578

Details

Risk Information

CVSS v2