Date: Wed, 20 Jul 2011 13:27:13 +0530 From: Huzaifa Sidhpurwala <huzaifas@...hat.com> To: oss-security@...ts.openwall.com Subject: Re: CVE request: kernel: ipv6: make fragment identifications less predictable On 07/20/2011 12:42 PM, Eugene Teo wrote: > IPv6 fragment identification generation is way beyond what we use for > IPv4 : It uses a single generator. Its not scalable and allows DoS attacks. > > Now inetpeer is IPv6 aware, we can use it to provide a more secure and > scalable frag ident generator (per destination, instead of system wide) > > This patch : > 1) defines a new secure_ipv6_id() helper > 2) extends inet_getid() to provide 32bit results > 3) extends ipv6_select_ident() with a new dest parameter > > http://thread.gmane.org/gmane.linux.network/201773/focus=201776 > https://bugzilla.redhat.com/show_bug.cgi?id=723429 > > Thanks, Eugene Please use CVE-2011-2699 -- Huzaifa Sidhpurwala / Red Hat Security Response Team
Powered by blists - more mailing lists
Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.