Matthew Seaman wrote:
> mato wrote:
>> On Thu, 07 Dec 2006 13:46:18 +0000, Vince wrote
>>> mato wrote:
>>>> On Wed, 6 Dec 2006 16:46:24 -0800, Josh Carroll wrote
>>>>>>>> ** Port marked as IGNORE: multimedia/win32-codecs:
>>>>>>>>         is forbidden: Remote code execution:
>>>>>>>> Isn't this behaviour flawed ??  Or am I missing something ?
>>>>> You need to make config in /usr/ports/multimedia/win32-codecs, and
>>>>> unselect quicktime. Then the port should install. This is assuming,
>>>>>  of course, that you can live without the QT codec(s).
>>>>> Josh
>>>> OK, I will try it..  Thank you all.
>>>> But the question remains -- if new port version is not vulnerable why i 
>>>> cannot
>>>> upgrade to it ??
>>> Its only not vulnerable if you unselect the quicktime codec. the
>>> vulnerability is in the quicktime codec.
>>> The port will by default use the stored config in
>>> /var/db/ports/win32-codecs/options and if this says to use the quicktime
>>> codec then it will not upgrade. This seems pretty sensible to me.
>>> Vince
>> I cannot access and check the port's Makefile right now ... Is it Makefile
>> which says (conditionally) "hey i'm vulnerable" or is it portaudit/VuXML
>> database which says that.  I guess the former, otherwise 
>> should
>> mark the port as vulnerable.  Right?
> In general, this sort of security flagging is done via portaudit's own 
> database
> which is derived mostly from VuXML.  To get around the lockout imposed by 
> portaudit
> you can do:
> but a) this doesn't disable any actual vulnerabilities, just the checking
> for their presence, and b) on your own head be it.
> Now, in the case of the win32-codecs port, it is done differently.  The port
> Makefile says this:
> .if defined(WITH_QUICKTIME)
> FORBIDDEN=      Remote code execution: 
> db-81e1-000e0c2e438a.html
> ADDITIONAL_CODECS_DISTFILES+=   qt63dlls-20050115.tar.bz2 \
>                                 qtextras-20041107.tar.bz2
> .else
> PLIST_SUB+=     QUICKTIME="@comment "
> .endif
> ie. selecting the Quicktime plugins in the OPTIONS dialog, which causes
> WITH_QUICKTIME to be defined, means that the port will be marked forbidden,
> and any attempt to install it will be blocked.
> A simple 'make config' and unchecking that option will let you install
> the port with all of the other codecs.
> Freshports parses the VuXML database to mark ports as vulnerable -- the VuXML
> data contains a listing of the vulnerable package names and ranges of version
> numbers.  VuXML doesn't actually have a way of distinguishing what options are
> enabled for the port, although the textual note in the entry explains the 
> situation
> fairly clearly.  It doesn't say "Users are advised to reinstall the port with 
> the
> Quicktime support turned off" which might be a nice addition.  The system will
> however prompt users to upgrade to a version of the port after the code to
> forbid installation with Quicktime stuff enabled was added.
>       Cheers,
>       Matthew

Matthew, that is a great answer!!
Thank you! :-)

The last question would be how to make make(1) /portupgrade/portsystem
to ignore FORBIDDEN.

Anyway, thanks again.

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