That bug has been opened on https://launchpad.net/ubuntu/+source/gnome-keyring/+bug/83326

"Binary package hint: gnome-keyring

I simply entered my Wireless LAN WPA key with NetworkManager, then I had the keyring window asking for a password to create a new keyring.
I created one and 10s after it crashed.
...
Package: gnome-keyring 0.7.3-0ubuntu1
..."

Debug backtrace for the crash:

(gdb) bt full

+ Trace 108132

The corresponding line:  " if (strcmp (keyring->keyring_name, name) == 0) {"

(gdb) p *keyring
$3 = {file = 0x0, file_mtime = 1953705829, password = 0x62617267 <Address 0x62617267 out of bounds>, locked = 774861413, 
  asking_password = 1836019303, salt = "e2/keyri", hash_iterations = 7563118, 
  keyring_name = 0x7469726f <Address 0x7469726f out of bounds>, items = 0x79, ctime = 48, mtime = 17, lock_on_idle = 0, 
  lock_timeout = 3697781}