Log Message:
Update to 3.20.1

Changelog:
The following security-relevant bugs have been resolved in NSS 3.20.1.
Users are encouraged to upgrade immediately.

* Bug 1192028 (CVE-2015-7181) and
  Bug 1202868 (CVE-2015-7182):
  Several issues existed within the ASN.1 decoder used by NSS for handling
  streaming BER data. While the majority of NSS uses a separate, unaffected
  DER decoder, several public routines also accept BER data, and thus are
  affected. An attacker that successfully exploited these issues can overflow
  the heap and may be able to obtain remote code execution.