Re: ghostscript vulnerabilities

[Didier Link <didier@famille-link.fr>]

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Hello all

I will review the Mark's patches and apply them for a security release
next week.

Thanks for your help !

Best regards

Didier


Le 15/10/2016 à 09:36, Mark H Weaver a écrit :
> ludo@gnu.org (Ludovic Courtès) writes:
>
>> Hello Didier and all,
>>
>> We are wondering about the applicability to GNU Ghostscript of the
>> recent vulnerabilities discovered in AGPL Ghostscript:
>>
>> Alex Vong <alexvong1995@gmail.com> skribis:
>>
>>> Salvatore Bonaccorso <carnil@debian.org> writes:
>>>
>>>> -------------------------------------------------------------------------
>>>> Debian Security Advisory DSA-3691-1                   security@debian.org
>>>> https://www.debian.org/security/                     Salvatore Bonaccorso
>>>> October 12, 2016                      https://www.debian.org/security/faq
>>>> -------------------------------------------------------------------------
>>>>
>>>> Package        : ghostscript
>>>> CVE ID         : CVE-2013-5653 CVE-2016-7976 CVE-2016-7977 CVE-2016-7978 
>>>>                  CVE-2016-7979 CVE-2016-8602
>>>> Debian Bug     : 839118 839260 839841 839845 839846 840451
>>>>
>>>> Several vulnerabilities were discovered in Ghostscript, the GPL
>>>> PostScript/PDF interpreter, which may lead to the execution of arbitrary
>>>> code or information disclosure if a specially crafted Postscript file is
>>>> processed.
>> [...]
>>
>>> I've checked just now. GNU Ghostscript is also affected at least by
>>> CVE-2016-8602. Looking at the patch in this bug report[0] and the
>>> source[1], one can see that the vulnerable lines are present in GNU
>>> Ghostscript. What should we do now?
>>>
>>> [0]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=840451
>>> [1]: http://git.savannah.gnu.org/cgit/ghostscript.git/tree/psi/zht2.c
>> WDYT?  Perhaps a new release incorporating the fixes is in order?
> FYI, I ported the upstream patches to GNU ghostscript for GNU Guix.
> You can find them here:
>
> http://git.savannah.gnu.org/cgit/guix.git/commit/?id=1de17a648fa631f0074d315bfff0716220ce4880
>
>       Mark



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