Re: [TLS] TLS 1.3 and vendor strings?

Jeffrey Walton <noloader@gmail.com> Fri, 22 May 2015 03:30 UTC

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Date: Thu, 21 May 2015 23:30:30 -0400
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From: Jeffrey Walton <noloader@gmail.com>
To: Yuhong Bao <yuhongbao_386@hotmail.com>
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Subject: Re: [TLS] TLS 1.3 and vendor strings?
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On Thu, May 21, 2015 at 11:17 PM, Yuhong Bao <yuhongbao_386@hotmail.com> wrote:
> In this case, the pre-10.8.4 versions of OS X lost marketshare pretty quickly, I think by now it is less than 0.1% now.
>
Unfortunately, I have two OS X machines that are still in the 10.8
series. That's because of Xcode/iOS support. I still need to support
older version of iOS; and for that, I need an older version of Xcode;
and for that, I need an older version of OS X.

... and the worst part is, its for dumb reasons, like Apple changed UI
scheme to light blue text on white background. I literally cannot read
the text, and had to hold back on upgrades so I could see it.

Jeff

>> Date: Thu, 21 May 2015 22:46:33 -0400
>> From: noloader@gmail.com
>> To: tls@ietf.org
>> Subject: [TLS] TLS 1.3 and vendor strings?
>>
>> Are there any plans to support free form vendor strings?
>>
>> The use case is similar to Apple's buggy ECDHE-ECDSA SecureTransport
>> for OS X 10.8 and iOS 7.
>>
>> In this case, OpenSSL had to jump through a number of hoops to
>> identify the potentially affected clients via fingerprinting.
>> Fingerprinting was not precise, and it potentially captured unaffected
>> clients when Apple patched at OS X 10.8.4 and iOS 7.0.3. That is, an
>> OS X 10.8.5 or iOS 7.0.4 client would potentially be identified as
>> buggy even though it was patched.
>>
>> Or is there another way to handle the occasional implementation bug like this?
>>
>> (And to be clear: patching is not always an option. Apple is not like
>> Microsoft or Linux. Rather, they left a number of hosts unpatched for
>> the ECDHE-ECDSA bug; and did the same with CVE-2015-1130 (Goto Fail);
>> and did the same with CVE-2015-1130 (Hidden Backdoor)).
>>