Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Thu, 24 Jul 2008 04:20:19 +0200
From: Robert Buchholz <>
Cc: Josh Bressers <>,
 Jamie Strandboge <>,
 "Steven M. Christey" <>
Subject: Re: CVE request for dnsmasq DoS

On Wednesday 23 July 2008, Josh Bressers wrote:
> On 8 July 2008, Jamie Strandboge wrote:
> > I finally had time to develop a PoC and confirm this on my own. A
> > client need only send a DHCPREQUEST for an IP address not on the
> > same network as dnsmasq. Eg:
> >
> > 1. dnsmasq listening on and giving IP addresses for
> > 2. client requests IP address on another network,
> > such as 3. dnsmasq 2.25 (and presumably earlier)
> > crashes
> It seems there is also a problem with newer dnsmasq that is very
> similar to this:
> That problem appears to be pretty much the same thing, but affecting
> versions 2.43 - 2.45

I could reproduce the issue using the Jamie sent 
earlier. The problem manifests the same way as the 2.25 flaw, but it 
only affects 2.43 -- 2.42 survives, and so does 2.44. However, that 
release has been withdrawn [1] because of another bug.

Hope that helps,


Download attachment "signature.asc " of type "application/pgp-signature" (836 bytes)

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.