oss-security - Re: connman heads up / CVE requests

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Date: Mon, 07 May 2012 09:55:24 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
CC: Sebastian Krahmer <krahmer@...e.de>
Subject: Re: connman heads up / CVE requests

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On 05/07/2012 07:59 AM, Sebastian Krahmer wrote:
> Hi,
> 
> Thanks for disassembling my mail :)
> 
> 
>> 1) Conman doesn't check for the origin of netlink messages (from
>> https://bugzilla.novell.com/show_bug.cgi?id=715172#c4)
>> 
>> with patches: [1a] 
>> http://git.kernel.org/?p=network/connman/connman.git;a=commit;h=c1b968984212b46bea1330f5ae029507b9bfded9
>>
>> 
[1b]
>> http://git.kernel.org/?p=network/connman/connman.git;a=commit;h=b0ec6eb4466acc57a9ea8be52c17b674b6ea0618
>
>> 
> Yes.

Please use CVE-2012-2320 for this issue.

>> 
>> 2) Check hostname validity prior setting the hostname in
>> loopback plug-in: (from
>> https://bugzilla.novell.com/show_bug.cgi?id=715172#c4)
>> 
>> with patches: [2a] 
>> http://git.kernel.org/?p=network/connman/connman.git;a=commit;h=26ace5c59f790bce0f1988b88874c6f2c480fd5a
>>
>> 
[2b]
>> http://git.kernel.org/?p=network/connman/connman.git;a=commit;h=a5f540db7354b76bcabd0a05d8eb8ba2bff4e911
>
>> 
> Yes. The severity of this is quite high, its a default remote root
> exploit, as connman is requesting hostname per dhcp by default and
> not checking for shell escapes. (I did not check whether they clean
> any other strings that could appear and could contain newlines etc.
> when its written to a config file)

Please use CVE-2012-2321 for this issue.


>> 
>> 3) DHCPv6 option parsing vulnerable to DoS (endless loop): (from
>> https://bugzilla.novell.com/show_bug.cgi?id=715172#c9)
>> 
>> with patches: There doesn't seem to be upstream patches for this
>> yet.
> 
> I think its this: 
> http://lists.connman.net/pipermail/connman/2012-May/009473.html

Please use CVE-2012-2322 for this issue.


> 
>> 
>> 4) Check vpnc options for validity prior saving them: (from
>> https://bugzilla.novell.com/show_bug.cgi?id=715172#c10):
> 
> AFAIK there is no patch for it yet. Upstream needs to
> verify/confirm these, but I think its a real bug that lets you
> overwrite files.

I will wait until this is confirmed, when it is please reply to the list.

> Sebastian
> 


- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993

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