[TLS] [Technical Errata Reported] RFC5246 (6572)

RFC Errata System <rfc-editor@rfc-editor.org> Wed, 05 May 2021 10:21 UTC

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Subject: [TLS] [Technical Errata Reported] RFC5246 (6572)
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The following errata report has been submitted for RFC5246,
"The Transport Layer Security (TLS) Protocol Version 1.2".

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You may review the report below and at:
https://www.rfc-editor.org/errata/eid6572

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Type: Technical
Reported by: Johannes Görlich <johannes.goerlich@siemens.com>

Section: 9

Original Text
-------------
In the absence of an application profile standard specifying otherwise, a TLS-compliant application MUST implement the cipher suite TLS_RSA_WITH_AES_128_CBC_SHA (see Appendix A.5 for the definition).

Corrected Text
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In the absence of an application profile standard specifying otherwise, a TLS-compliant application MUST implement the cipher suite TLS_RSA_WITH_AES_128_GCM_SHA256 (see Appendix A.5 for the definition).

Notes
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A must-be-implement cipher suite should not relay on a bulk encryption algorithm which is vulnerable to plain-text attacks or on a secure hash algorithm which has been proven to be insecure.

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RFC5246 (draft-ietf-tls-rfc4346-bis-10)
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Title               : The Transport Layer Security (TLS) Protocol Version 1.2
Publication Date    : August 2008
Author(s)           : T. Dierks, E. Rescorla
Category            : PROPOSED STANDARD
Source              : Transport Layer Security
Area                : Security
Stream              : IETF
Verifying Party     : IESG