Security update for MozillaFirefox, mozilla-nspr, mozilla-nss (important)

This update for MozillaFirefox, mozilla-nspr, mozilla-nss fixes the
following issues:

Mozilla Firefox was updated to 38.7.0 ESR (bsc#969894), fixing following
security issues:

• MFSA 2016-16/CVE-2016-1952/CVE-2016-1953 Miscellaneous memory safety
  hazards (rv:45.0 / rv:38.7)
• MFSA 2016-17/CVE-2016-1954 Local file overwriting and potential
  privilege escalation through CSP reports
• MFSA 2016-20/CVE-2016-1957 Memory leak in libstagefright when deleting
  an array during MP4 processing
• MFSA 2016-21/CVE-2016-1958 Displayed page address can be overridden
• MFSA 2016-23/CVE-2016-1960 Use-after-free in HTML5 string parser
• MFSA 2016-24/CVE-2016-1961 Use-after-free in SetBody
• MFSA 2016-25/CVE-2016-1962 Use-after-free when using multiple WebRTC
  data channels
• MFSA 2016-27/CVE-2016-1964 Use-after-free during XML transformations
• MFSA 2016-28/CVE-2016-1965 Addressbar spoofing though history navigation
  and Location protocol property
• MFSA 2016-31/CVE-2016-1966 Memory corruption with malicious NPAPI plugin
• MFSA 2016-34/CVE-2016-1974 Out-of-bounds read in HTML parser following a
  failed allocation
• MFSA 2016-35/CVE-2016-1950 Buffer overflow during ASN.1 decoding in NSS
• MFSA 2016-37/CVE-2016-1977/CVE-2016-2790/CVE-2016-2791/
  CVE-2016-2792/CVE-2016-2793/CVE-2016-2794/CVE-2016-2795/
  CVE-2016-2796/CVE-2016-2797/CVE-2016-2798/CVE-2016-2799/
  CVE-2016-2800/CVE-2016-2801/CVE-2016-2802 Font vulnerabilities in the
  Graphite 2 library

Mozilla NSPR was updated to version 4.12 (bsc#969894), fixing following
bugs:

• added a PR_GetEnvSecure function, which attempts to detect if the
  program is being executed with elevated privileges, and returns NULL if
  detected. It is recommended to use this function in general purpose
  library code.
• fixed a memory allocation bug related to the PR_*printf functions
• exported API PR_DuplicateEnvironment, which had already been added in
  NSPR 4.10.9
• added support for FreeBSD aarch64
• several minor correctness and compatibility fixes

Mozilla NSS was updated to fix security issues (bsc#969894):

• MFSA 2016-15/CVE-2016-1978 Use-after-free in NSS during SSL connections
  in low memory
• MFSA 2016-35/CVE-2016-1950 Buffer overflow during ASN.1 decoding in NSS
• MFSA 2016-36/CVE-2016-1979 Use-after-free during processing of DER
  encoded keys in NSS