NSS release notes


Network Security Services (NSS) is a security patch release for NSS 3.19.2. The bug fixes in NSS are described in the “Security Fixes” section below.

(Current users of NSS 3.19.3 or NSS 3.19.4 are advised to update to NSS 3.20.2 release notes, NSS 3.21 release notes, or a later release.)

Distribution Information

The HG tag is NSS_3_19_2_2_RTM. NSS requires NSPR 4.10.10 or newer.

NSS source distributions are available on ftp.mozilla.org for secure HTTPS download:

Security Fixes in NSS

New in NSS

New Functionality

No new functionality is introduced in this release.


The NSS development team would like to thank Karthikeyan Bhargavan from INRIA for responsibly disclosing the issue in Bug 1158489.


NSS shared libraries are backward compatible with all older NSS 3.x shared libraries. A program linked with older NSS 3.x shared libraries will work with NSS shared libraries without recompiling or relinking. Furthermore, applications that restrict their use of NSS APIs to the functions listed in NSS Public Functions will remain compatible with future versions of the NSS shared libraries.


Bugs discovered should be reported by filing a bug report with bugzilla.mozilla.org (product NSS).