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Re: FreeXL 1.0.2 - multiplication overflow on 32 bit platforms



On 07/15/2015 10:35 PM, Sebastiaan Couwenberg wrote:
> Dear Security Team,
> 
> FreeXL 1.0.2 was released yesterday, it fixes a recently discovered
> security issue. To quote the release announcement:
> 
> "
>  RedHat maintainers recently discovered a potential security breach
>  caused by the current version of FreeXL.
> 
>  This issue is not very like to happen under ordinary conditions, anyway
>  a purposely forged XLS document could effectively cause a
>  multiplication overflow on 32 bit platforms, and this in turn will
>  subsequently cause a dangerous crash due to an incorrectly sized
>  memory allocation.
>  freexl-1.0.2 definitely fixes the issue.
> "
> 
> https://groups.google.com/d/msg/spatialite-users/UZ7ivR6ASV0/K_8bjP1or_IJ
> 
> I've uploaded freexl (1.0.2-1) to unstable today, and I've backported
> the fix to freexl (1.0.0g-1+deb8u2) and freexl (1.0.0b-1+deb7u2) for
> jessie & wheezy respectively. The changes are available in git:
> 
> http://anonscm.debian.org/cgit/pkg-grass/freexl.git/log/?h=jessie
> http://anonscm.debian.org/cgit/pkg-grass/freexl.git/log/?h=wheezy
> 
> Are these OK to upload?

freexl (1.0.2-1) migrated to testing, but the issue still affects wheezy
& jessie.

Do you consider this issue serious enough to fix in (old)oldstable, or
should I just drop the changes I prepared for those?

Kind Regards,

Bas

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