[Bug 1707172] [NEW] AES256-GCM emits all-zeros ciphertext on aarch64 with hardware acceleration

[Ard Biesheuvel]

Public bug reported:

The following Debian issue exists in the Ubuntu package as well

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=867581

It breaks gnome-terminal and xfce4-terminal on arm64 machines.

The issue is fixed upstream in 3.5.13, and the fix was backported to
Debian stretch as well (3.5.8-5+deb9u2)

** Affects: gnutls28 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1707172

Title:
  AES256-GCM emits all-zeros ciphertext on aarch64 with hardware
  acceleration

Status in gnutls28 package in Ubuntu:
  New

Bug description:
  The following Debian issue exists in the Ubuntu package as well

  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=867581

  It breaks gnome-terminal and xfce4-terminal on arm64 machines.

  The issue is fixed upstream in 3.5.13, and the fix was backported to
  Debian stretch as well (3.5.8-5+deb9u2)

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