[TYPO3-core] FYI72: #9947: gzip compression does not work in BE at all

[Oliver Hader]

Hi Steffen,

Steffen Gebert schrieb:
> Dmitry Dulepov wrote:
>> BT reference: http://bugs.typo3.org/view.php?id=9947
>>
>> Solution: the solution is to use PHP built-in output compression handler,
>> which is faster anyway.
> 
> This patch brakes BE for me. After update from rev 4562 to 4562 where this bug and #9947 were fixed, apache sends me 0 byte sized responses in most backend modules.

The issue #9947 was committed in rev. 4563-4565. What TYPO3 branch are
you using and which SVN revision?

> I did some debugger runs and I see normal page content being generated in debugger, but after TYPO3 finishing it's work, nothing is sent to the client.
> 
> In my error log I find the following lines:
> ALERT - canary mismatch on efree() - heap overflow detected (attacker '127.0.0.1', file '/var/www/vhosts/dmm/typo3/alt_mod_frameset.php'),
> 
> So suhosin prevents a heap overflow.
> 
> I don't know, what could be done against this, but as I use standard Ubuntu (8.10 amd64), I think this patch should be tested a bit more.
> 
> If you need any information about my system, just ask!

I could not reproduce with "PHP 5.2.6-5 with Suhosin-Patch 0.9.6.2
(cgi-fcgi) (built: Oct  5 2008 12:46:30)" on Debian. What's your exact
PHP and Suhosin version?

Besides that there's a bug-report at php.net about it:
http://bugs.php.net/bug.php?id=44872

olly
-- 
Oliver Hader
TYPO3 4.3 Release Manager