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[Donn Morrison <1419436@xxxxxxxxxxxxxxxxxx>]

After recompiling mutt with openssl instead of gnutls I discovered that
openssl was also affected, so I tried another USB ethernet dongle and
that seems to have fixed it. At least I can't reproduce the problem with
the large IMAP fetch using openssl s_client. I've now blacklisted the
module for the onboard ethernet phy_twl4030_usb.

Maybe this bug could be reassigned?

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https://bugs.launchpad.net/bugs/1419436

Title:
  tls_socket_read (Decryption has failed.)

Status in gnutls26 package in Ubuntu:
  New

Bug description:
  Since moving from Ubunutu 12.04 (armel) to 14.04 (armhf) on a
  Beagleboard I have a persistent problem using mutt where (especially)
  larger messages fail to download resulting in the error:

  tls_socket_read (Decryption has failed.)

  The failure is reproducable in that I can almost never download
  messages with attachments larger than 10MB (it will inevitably fail at
  some point during the transfer).

  12.04 (armel) had gnutls26 verison 2.12.14-5ubuntu3.8, and I never had
  this problem. 14.04 uses 2.12.23-12ubuntu2.1. Strangely enough my
  amd64 machines which also run 14.04 and 2.12.23-12ubuntu2.1 do not
  have this problem.

  In attempting to debug I tried setting GNUTLS_DEBUG_LEVEL=6, which
  didn't produce any output from libgnutls26. Next I tried forcing mutt
  to use libgnutls28 (3.2.11-2ubuntu1) with LD_PRELOAD. Then setting
  GNUTLS_DEBUG_LEVEL=6 and redirecting stderr to a file yields the
  following log:

  ...
  gnutls[4]: REC[0x16cb240]: Expected Packet Application Data(23)
  gnutls[4]: REC[0x16cb240]: Received Packet Application Data(23) with length: 1395
  gnutls[4]: REC[0x16cb240]: Decrypted Packet[4742] Application Data(23) with length: 1371
  gnutls[6]: BUF[REC]: Inserted 1371 bytes of Data(23)
  gnutls[4]: REC[0x16cb240]: SSL 3.3 Application Data packet received. Epoch 0, length: 1395
  gnutls[4]: REC[0x16cb240]: Expected Packet Application Data(23)
  gnutls[4]: REC[0x16cb240]: Received Packet Application Data(23) with length: 1395
  gnutls[4]: REC[0x16cb240]: Decrypted Packet[4743] Application Data(23) with length: 1371
  gnutls[6]: BUF[REC]: Inserted 1371 bytes of Data(23)
  gnutls[4]: REC[0x16cb240]: SSL 3.3 Application Data packet received. Epoch 0, length: 1378
  gnutls[4]: REC[0x16cb240]: Expected Packet Application Data(23)
  gnutls[4]: REC[0x16cb240]: Received Packet Application Data(23) with length: 1378
  gnutls[4]: REC[0x16cb240]: Decrypted Packet[4744] Application Data(23) with length: 1354
  gnutls[6]: BUF[REC]: Inserted 1354 bytes of Data(23)
  gnutls[4]: REC[0x16cb240]: SSL 3.3 Application Data packet received. Epoch 0, length: 1395
  gnutls[4]: REC[0x16cb240]: Expected Packet Application Data(23)
  gnutls[4]: REC[0x16cb240]: Received Packet Application Data(23) with length: 1395
  gnutls[2]: ASSERT: gnutls_cipher.c:951
  gnutls[2]: ASSERT: gnutls_cipher.c:199
  gnutls[2]: ASSERT: gnutls_record.c:1223
  gnutls[1]: Discarded message[4745] due to invalid decryption
  gnutls[2]: ASSERT: gnutls_record.c:1407
  gnutls[2]: ASSERT: gnutls_buffers.c:624
  gnutls[4]: REC: Sending Alert[1|0] - Close notify
  gnutls[4]: REC[0x16cb240]: Preparing Packet Alert(21) with length: 2 and min pad: 0
  gnutls[4]: REC[0x16cb240]: Sent Packet[10] Alert(21) in epoch 1 and length: 31
  gnutls[2]: ASSERT: gnutls_record.c:1384
  gnutls[2]: ASSERT: gnutls_record.c:334
  gnutls[4]: REC[0x16cb240]: Start of epoch cleanup
  gnutls[4]: REC[0x16cb240]: End of epoch cleanup
  gnutls[4]: REC[0x16cb240]: Epoch #1 freed

  So this problem (at least on armhf) seems to affect both gnutls26 and
  gnutls28.

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