oss-sec mailing list archives

Re: CVE request for dnsmasq DoS


From: Robert Buchholz <rbu () gentoo org>
Date: Thu, 24 Jul 2008 03:23:33 +0200

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
192.168.122.0/24 2. client requests IP address on another network,
such as 192.168.0.1 3. dnsmasq 2.25 (and presumably earlier)
crashes

It seems there is also a problem with newer dnsmasq that is very
similar to this:
http://bugs.gentoo.org/show_bug.cgi?id=232523

That problem appears to be pretty much the same thing, but affecting
versions 2.43 - 2.45

I also had to think of this <2.26 issue when I saw the bug, but I did 
not get to request a CVE yet, so thank you.

Did this ever get a CVE id?

Yes, the <2.26 one is CVE-2008-3214.

Robert

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