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Re: Heartbleed bug? [message #185561 is a reply to message #185555]

Fri, 11 April 2014 06:23

Arno Welzel
Messages: 317
Registered: October 2011

Karma:

Senior Member

Denis McMahon, 2014-04-11 01:14:

> On Thu, 10 Apr 2014 22:56:34 +0200, Arno Welzel wrote:
>
>> Denis McMahon, 2014-04-10 17:50:
>>
>>> On Thu, 10 Apr 2014 08:57:54 +0200, Arno Welzel wrote:
>>>
>>>> To be precise: If the installed PHP version is linked against OpenSSL
>>>> then it should be replaced with a patched version of course.
>>>
>>> Is simply being linked against the buggy openssl enough to be
>>> exploitable? As I understand it the openssl code needs to be invoked
>>> (eg
>>
>> No. The bug is only exploitable if you run a SSL/TLS server - which is
>> possible using PHP.
>>
>>> https) for the bug to actually expose data.
>
> Sorry, but you seem to be saying "No" and then agreeing with me. Perhaps
> it's the way you have quote-replied, and I'm reading your "No" as
> applying to a different part of the quoted text to that which you
> intended it to refer?

Sorry for the confusion :-(

> Are you saying "No" to the question:
>
>>> Is simply being linked against the buggy openssl enough to be
>>> exploitable?

Yes - this I am referring to. Just the fact that you use a PHP version
which is linket to a buggy OpenSSL lib is of course not enough to
exploit the bug. One has to actually *use* the buggy functions in a way
that an attacker can send crafted heartbeat packets to your server.

--
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de
http://fahrradzukunft.de

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[Message index]

		Heartbleed bug? By: Kevin Burton on Wed, 09 April 2014 12:24
		Re: Heartbleed bug? By: Jerry Stuckle on Wed, 09 April 2014 13:17
		Re: Heartbleed bug? By: Robert Heller on Wed, 09 April 2014 13:56
		Re: Heartbleed bug? By: Jerry Stuckle on Wed, 09 April 2014 15:21
		Re: Heartbleed bug? By: Christoph Michael Bec on Wed, 09 April 2014 15:43
		Re: Heartbleed bug? By: Jerry Stuckle on Wed, 09 April 2014 17:37
		Re: Heartbleed bug? By: Arno Welzel on Thu, 10 April 2014 06:51
		Re: Heartbleed bug? By: Jerry Stuckle on Thu, 10 April 2014 11:52
		Re: Heartbleed bug? By: Christoph Michael Bec on Thu, 10 April 2014 12:03
		Re: Heartbleed bug? By: Jerry Stuckle on Thu, 10 April 2014 16:36
		Re: Heartbleed bug? By: Denis McMahon on Thu, 10 April 2014 23:01
		Re: Heartbleed bug? By: The Natural Philosoph on Thu, 10 April 2014 23:47
		Re: Heartbleed bug? By: Eli the Bearded on Fri, 11 April 2014 00:38
		Re: Heartbleed bug? By: Jerry Stuckle on Fri, 11 April 2014 01:58
		Re: Heartbleed bug? By: Denis McMahon on Fri, 11 April 2014 02:59
		Re: Heartbleed bug? By: The Natural Philosoph on Fri, 11 April 2014 03:36
		Re: Heartbleed bug? By: Jerry Stuckle on Fri, 11 April 2014 16:08
		Re: Heartbleed bug? By: Arno Welzel on Thu, 10 April 2014 20:54
		Re: Heartbleed bug? By: Denis McMahon on Thu, 10 April 2014 22:45
		Re: Heartbleed bug? By: Arno Welzel on Fri, 11 April 2014 06:33
		Re: Heartbleed bug? By: Denis McMahon on Thu, 10 April 2014 15:47
		Re: Heartbleed bug? By: Robert Heller on Wed, 09 April 2014 15:56
		Re: Heartbleed bug? By: Jerry Stuckle on Wed, 09 April 2014 17:38
		Re: Heartbleed bug? By: M. Strobel on Wed, 09 April 2014 22:11
		Re: Heartbleed bug? By: Jerry Stuckle on Thu, 10 April 2014 11:53
		Re: Heartbleed bug? By: The Natural Philosoph on Wed, 09 April 2014 20:02
		Re: Heartbleed bug? By: Adam Harvey on Wed, 09 April 2014 23:43
		Re: Heartbleed bug? By: Eli the Bearded on Thu, 10 April 2014 00:01
		Re: Heartbleed bug? By: Arno Welzel on Thu, 10 April 2014 06:43
		Re: Heartbleed bug? By: Arno Welzel on Thu, 10 April 2014 06:57
		Re: Heartbleed bug? By: Denis McMahon on Thu, 10 April 2014 15:50
		Re: Heartbleed bug? By: The Natural Philosoph on Thu, 10 April 2014 18:37
		Re: Heartbleed bug? By: Arno Welzel on Thu, 10 April 2014 20:56
		Re: Heartbleed bug? By: M. Strobel on Thu, 10 April 2014 21:32
		Re: Heartbleed bug? By: Denis McMahon on Thu, 10 April 2014 23:14
		Re: Heartbleed bug? By: Arno Welzel on Fri, 11 April 2014 06:23
		Re: Heartbleed bug? By: Denis McMahon on Thu, 10 April 2014 15:42
		Re: Heartbleed bug? By: Arno Welzel on Fri, 11 April 2014 11:00

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