full-disclosure - Re: [FD] [oss-security] CVE request:Lynx invalid URL parsing with '?'

Open Source and information security mailing list archives

Date: Fri, 4 Nov 2016 08:07:22 -0400
From: Thomas Dickey <dickey@....com>
To: redrain root <rootredrain@...il.com>
Cc: oss-security@...ts.openwall.com, cve-assign@...re.org, dickey@....com,
 fulldisclosure@...lists.org
Subject: Re: [FD] [oss-security] CVE request:Lynx invalid URL parsing with
	'?'

On Thu, Nov 03, 2016 at 05:58:14PM +0800, redrain root wrote:
> I can't find any bugtracker in lynx ,so i will disclose by this mail and
> sent to the author dickey@...isible-island.net.
> 
> redrain (rootredrain@...il.com)
> Date:2016-11-03
> Version: 2.8.8pre.4、2.8.9dev.8 and earlier
> Platform: Linux and Windows
> Vendor: http://lynx.browser.org/
> Vendor Notified: 2016-11-03
> 
> 
> VULNERABILITY
> -------------------------
> 
> Lynx doesn't parse the authority component of the URL correctly when the
> host
> name part ends with '?', and could instead be tricked into

Actually, it does parse correctly.  Go read RFC 1738.

What can be improved here is adding some warnings about a few of the cases
where users can be confused by legal URL syntax.  I'm working on that.

-- 
Thomas E. Dickey <dickey@...isible-island.net>
http://invisible-island.net
ftp://invisible-island.net

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