1.. _mozilla_projects_nss_nss_3_19_release_notes:
2
3NSS 3.19 release notes
4======================
5
6`Introduction <#introduction>`__
7--------------------------------
8
9.. container::
10
11   The NSS team has released Network Security Services (NSS) 3.19, which is a minor
12   security release.
13
14.. _distribution_information:
15
16`Distribution Information <#distribution_information>`__
17--------------------------------------------------------
18
19.. container::
20
21   The HG tag is NSS_3_19_RTM. NSS 3.19 requires NSPR 4.10.8 or newer.
22
23   NSS 3.19 source distributions are available on ftp.mozilla.org for secure HTTPS download:
24
25   -  Source tarballs:
26      https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_19_RTM/src/
27
28.. _security_fixes_in_nss_3.19:
29
30`Security Fixes in NSS 3.19 <#security_fixes_in_nss_3.19>`__
31------------------------------------------------------------
32
33.. container::
34
35   -  `Bug 1086145 <https://bugzilla.mozilla.org/show_bug.cgi?id=1086145>`__ /
36      `CVE-2015-2721 <http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2721>`__ - Fixed a
37      bug related to the ordering of TLS handshake messages. This was also known
38      as `SMACK <https://www.smacktls.com/>`__.
39
40.. _new_in_nss_3.19:
41
42`New in NSS 3.19 <#new_in_nss_3.19>`__
43--------------------------------------
44
45.. container::
46
47.. _new_functionality:
48
49`New Functionality <#new_functionality>`__
50~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
51
52.. container::
53
54   -  For some certificates, such as root CA certificates that don't embed any constraints, NSS
55      might impose additional constraints such as name constraints. A new API
56      (`CERT_GetImposedNameConstraints <http://mxr.mozilla.org/nss/ident?i=CERT_GetImposedNameConstraints>`__) has
57      been added that allows one to lookup imposed constraints.
58   -  It is possible to override the directory
59      (`SQLITE_LIB_DIR <https://bugzilla.mozilla.org/show_bug.cgi?id=1138820>`__) in which the NSS
60      build system will look for the sqlite library.
61
62   .. rubric:: New Functions
63      :name: new_functions
64
65   -  *in cert.h*
66
67      -  **CERT_GetImposedNameConstraints** - Check if any imposed constraints exist for the given
68         certificate, and if found, return the constraints as encoded certificate extensions.
69
70.. _notable_changes_in_nss_3.19:
71
72`Notable Changes in NSS 3.19 <#notable_changes_in_nss_3.19>`__
73--------------------------------------------------------------
74
75.. container::
76
77   -  The SSL 3 protocol has been disabled by default.
78   -  NSS now more strictly validates TLS extensions and will fail a handshake that contains
79      malformed extensions (`bug 753136 <https://bugzilla.mozilla.org/show_bug.cgi?id=753136>`__).
80   -  In TLS 1.2 handshakes, NSS advertises support for the SHA512 hash algorithm in order to be
81      compatible with TLS servers that use certificates with a SHA512 signature (`bug
82      1155922 <https://bugzilla.mozilla.org/show_bug.cgi?id=1155922>`__).
83
84.. _bugs_fixed_in_nss_3.19:
85
86`Bugs fixed in NSS 3.19 <#bugs_fixed_in_nss_3.19>`__
87----------------------------------------------------
88
89.. container::
90
91   This Bugzilla query returns all the bugs fixed in NSS 3.19:
92
93   https://bugzilla.mozilla.org/buglist.cgi?resolution=FIXED&classification=Components&query_format=advanced&product=NSS&target_milestone=3.19
94
95`Acknowledgements <#acknowledgements>`__
96----------------------------------------
97
98.. container::
99
100   The NSS development team would like to thank Karthikeyan Bhargavan from
101   `INRIA <http://inria.fr/>`__ for responsibly disclosing the issue in `bug
102   1086145 <https://bugzilla.mozilla.org/show_bug.cgi?id=1086145>`__.
103
104`Compatibility <#compatibility>`__
105----------------------------------
106
107.. container::
108
109   NSS 3.19 shared libraries are backward compatible with all older NSS 3.x shared libraries. A
110   program linked with older NSS 3.x shared libraries will work with NSS 3.19 shared libraries
111   without recompiling or relinking. Furthermore, applications that restrict their use of NSS APIs
112   to the functions listed in NSS Public Functions will remain compatible with future versions of
113   the NSS shared libraries.
114
115`Feedback <#feedback>`__
116------------------------
117
118.. container::
119
120   Bugs discovered should be reported by filing a bug report with
121   `bugzilla.mozilla.org <https://bugzilla.mozilla.org/enter_bug.cgi?product=NSS>`__ (product NSS).