[Bug 1556330] Re: upstream curl bug #1371: p12 client certificates code is broken

[Rolf Leggewie]

Thanks for the report, debdiff and update.

Quick comment, the upload should be to trusty-proposed, not trusty.  The
changelog would need to be adjusted accordingly once the FTBFS has been
ironed out.

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https://bugs.launchpad.net/bugs/1556330

Title:
  upstream curl bug #1371: p12 client certificates code is broken

Status in curl package in Ubuntu:
  Fix Released
Status in curl source package in Trusty:
  Triaged

Bug description:
  [Impact]

  The bug makes it impossible to use PKCS#12 secure storage of client
  certificates and private keys with any affected Ubuntu releases. The
  fix is one line fixing a broken switch statement and was already
  tested against Ubuntu 14.04 LTS with a rebuilt curl package.

  This was fixed in upstream libcurl in the following bug:

  https://sourceforge.net/p/curl/bugs/1371/

  The bug fix consists of one missing break statement at the end of a
  case in a switch statement.

  I personally patched the bug using source code release
  curl_7.35.0-1ubuntu2.6.dsc, used in Ubuntu 14.04 LTS, and verified it
  does indeed fix the bug and all of the package's tests still pass
  afterwards.

  [Test Case]

  The bug can be reproduced using the following libcurl parameters (even
  via CLI, pycurl, etc.).

  CURLOPT_SSLCERTTYPE == "P12"
  CURLOPT_SSLCERT = path to PKCS#12
  CURLOPT_SSLKEY = path to PKCS#12
  CURLOPT_SSLKEYPASSWD = key for PKCS#12 if needed

  Basically, just use a PKCS#12 format client certificate and private
  key against some certificate protected web server.

  [Regression Potential]

  If it could possibly break anything, which is extraordinarily
  unlikely, it would break one of the three client certificate formats
  (most likely PKCS#12 but also PEM or DER). Note 1/3 formats is already
  broken due to the bug. Client certificates of all three types could be
  checked to prevent this.

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