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From: "Pavel Janík" <Pavel@Janik.cz>
To: Simon Liu <simon@bitcartel.com>
Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] [BIP Draft] Datastream compression of Blocks and Transactions
Date: Wed, 2 Dec 2015 07:47:28 +0100	[thread overview]
Message-ID: <AF49F870-0600-47D1-8AC6-EEBFAA5B1C24@Janik.cz> (raw)
In-Reply-To: <565E30C6.1010002@bitcartel.com>


> On 02 Dec 2015, at 00:44, Simon Liu <simon@bitcartel.com> wrote:
> 
> Hi Matt/Pavel,
> 
> Why is it scary/undesirable?  Thanks.

Select your preferable compression library and google for it with +CVE.

E.g. in zlib:

http://www.cvedetails.com/vulnerability-list/vendor_id-72/product_id-1820/GNU-Zlib.html

…allows remote attackers to cause a denial of service (crash) via a crafted compressed stream…
…allows remote attackers to cause a denial of service (application crash)…
etc.

Do you want to expose such lib to the potential attacker?
--  
Pavel Janík






  parent reply	other threads:[~2015-12-02  6:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-30 23:12 [bitcoin-dev] [BIP Draft] Datastream compression of Blocks and Transactions Peter Tschipper
2015-12-01  5:28 ` Matt Corallo
2015-12-01 20:06   ` Pavel Janík
     [not found]     ` <565E30C6.1010002@bitcartel.com>
2015-12-02  6:47       ` Pavel Janík [this message]
2015-12-02  7:33         ` Simon Liu
2015-12-02 18:45           ` Patrick Strateman
2015-12-02 18:57   ` Emin Gün Sirer
2015-12-02 20:16     ` Peter Tschipper
2015-12-02 22:23       ` Matt Corallo
2015-12-02 23:02         ` Peter Tschipper
2015-12-04 13:30           ` Matt Corallo
2015-12-03 19:14     ` Gavin Andresen
2015-12-03 23:07       ` Rusty Russell
2015-12-02 23:05   ` Peter Tschipper
2015-12-03  5:52     ` Dave Scotese

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