(mozilla-projects-nss-nss-3-40-1-release-notes)=

# NSS 3.40.1 release notes

## [Introduction](#introduction)

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The NSS team has released Network Security Services (NSS) 3.40.1, which is a patch release for
NSS 3.40
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## [Distribution Information](#distribution_information)

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The HG tag is NSS_3_40_1_RTM. NSS 3.40.1 requires NSPR 4.20 or newer.

NSS 3.40 source distributions are available on ftp.mozilla.org for secure HTTPS download:

- Source tarballs:
  <https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_40_1_RTM/src/>
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(new-in-nss-3-40-1)=

## [New in NSS 3.40.1](#new_in_nss_3.40.1)

### [New Functionality](#new_functionality)

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- No new functionality is introduced in this release. This is a patch release to fix
  CVE-2018-12404

```{rubric} New Functions
```

- none
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(bugs-fixed-in-nss-3-40-1)=

## [Bugs fixed in NSS 3.40.1](#bugs_fixed_in_nss_3.40.1)

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- ::::{container} field indent

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  [Bug 1485864](https://bugzilla.mozilla.org/show_bug.cgi?id=1485864) - Cache
  side-channel variant of the Bleichenbacher attack (CVE-2018-12404)
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  ::::
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## [Compatibility](#compatibility)

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NSS 3.40.1 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 3.40.1 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.
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## [Feedback](#feedback)

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Bugs discovered should be reported by filing a bug report with
[bugzilla.mozilla.org](https://bugzilla.mozilla.org/enter_bug.cgi?product=NSS) (product NSS).
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