oss-security - Re: CVE requests: opie off by one and setuid() failure

Openwall GNU/*/Linux 3.0 - a small security-enhanced Linux distro for servers

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Wed, 22 Jun 2011 18:33:56 +0400
From: Vasiliy Kulikov <segoon@...nwall.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE requests: opie off by one and setuid()
 failure

Hi,

On Wed, Jun 22, 2011 at 16:28 +0200, Sebastian Krahmer wrote:
> Can someone assign 2 CVE's for a off by one in opiesu
> and a missing setuid() retval check in opielogin which
> leads to easy root compromise? Reviewed opie-2.4.
> 
> Patches are available here:
> 
> https://bugzilla.novell.com/show_bug.cgi?id=698772

I don't see memory zeroing before strcat():

argvbuf[0] = 0;

Probably it is not spotted as it is the first malloc(), but it is a bug.


Thanks,

-- 
Vasiliy

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.