[ERROR] admin_request show (ActionView::Template::Error) "string length (137) exceeds the limit 128"

[gbp]

An ActionView::Template::Error occurred in admin_request#show:

  string length (137) exceeds the limit 128
  app/models/raw_email.rb:23:in `date'

-------------------------------
Request:
-------------------------------

  * URL        : /en/admin/requests/1
  * HTTP Method: GET
  * Parameters : {"controller"=>"admin_request", "action"=>"show", "id"=>"1", "locale"=>"en"}

-------------------------------
Backtrace:
-------------------------------

  app/models/raw_email.rb:23:in `date'
  app/models/incoming_message.rb:99:in `block in parse_raw_email!'
  app/models/incoming_message.rb:97:in `parse_raw_email!'
  app/models/incoming_message.rb:178:in `mail_from'
  app/views/admin_request/show.html.erb:333
  app/views/admin_request/show.html.erb:330
  app/views/admin_request/show.html.erb:325

[gbp]

This appears to be an issue upstream when parsing emails with the mail gem. Seems to be since Ruby 2.7.5 which included mitigation for CVE-2021-41817.

There is a PR which might fix this issue https://github.com/mikel/mail/pull/1469

[gbp]

For the emails received by AsktheEU they all come from the same domain consilium.europa.eu and is caused by leading spaces on the header rows after the Date header. Such as:

Date: 27 Jan 2022 14:37:56 +0100
 To: ask+request-xxx-xxx@asktheeu.org
 From: "Postmaster Consilium" <xxx@consilium.europa.eu>

As a temporary fix I have corrected the raw emails by removing the spaces for the affect raw emails (IDs: 35358, 35361, 35685, 35766, 35795, 35896, 35952)

[gbp]

Another message has been received with the same issue - manually fixed again.

[gbp]

Created a PR in the AskTheEU theme to save doing this manual fix everytime

[gbp]

Still receiving emails with the same issue. PR is up for review

[gbp]

Seeing the same issue on WDTK now:

Date: 17 Nov 2022 17:57:03 +0000
 To: snip
 From: "Mail Delivery System" <snip>

[gbp]

Seeing this on the Netherlands admin too.