Date: Mon, 30 Aug 2010 10:37:04 -0400 (EDT) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: coley <coley@...re.org> Subject: Re: CVE Request: BGP protocol vulnerability ----- "Florian Weimer" <fw@...eb.enyo.de> wrote: > * Kurt Seifried: > > >> The BGP protocol and its various extensions require that BGP peering > >> sessions are terminated when a peer receives a BGP update message > >> which it considers semantically incorrect, leading to a persistent > >> denial-of-service condition if the update is received again after the > >> terminated session is reestablished. > >> > >> (This is not something new at all---we just need to get up, treat it > >> as a vulnerability, and fix it.) > > > > This sounds like CVE-2010-3035 > > http://www.cisco.com/warp/public/707/cisco-sa-20100827-bgp.shtml > > In this context, I don't like that the peer on the receiving end > resets the session. It's got a significant impact on availability, > and the resulting UPDATE churn hurts everybody a little bit. > > In short, I think there are two bugs: IOS XR producing bad data, and > other implementations dealing badly with it. I'm going to let MITRE deal with this one. I don't want to assign an ID for a protocol issue, that likely will affect numerous devices. Thanks. -- JB
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