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PaleMoon Version 27 3 Released with Security Updates

PaleMoon Version 27 3 Released with Security Updates

Pale Moon has been updated to Version 27.3.  Included in the updates are DiD* patches.

*DiD stands for "Defense-in-Depth" and is a fix that does not apply to an actively exploitable vulnerability in Pale Moon but prevents future vulnerabilities caused by the same code when surrounding code changes, exposing the problem.

Note that Version 27.3 is a major development update with many changes in the media back-end.  As a result, it is important to realize that some aspects are still a work in progress and some html5 video playback issues with MSE (Media Source Encryption) may be encountered.

Details from the Release Notes:

Security/privacy changes:

• Updated NSS to 3.28.4-RTM to address a number of issues.
• Added support for RSA-AES(-GCM)-SHA256/384 suites to broaden compatibility.
• Reconfigured networking security: disabled static DHE suites by default, enabled all RSA-AES(-GCM)-SHA256/384 suites in their stead.
• Fixed referrer policy keyword to align with the current spec ("cross-origin" vs "crossorigin").
• Added an option to display punycode domain for IDN websites to combat phishing.
  This is enabled by default for domain-validated https sites.
  Preference: browser.identity.display_punycode
  0 = Display IDN name in identity panel (previous behavior)
  1 = Display punycode name for DV SSL domains (default)
  2 = Also display punycode for HTTP sites if IDN name used
• Fixed an issue to prevent contacting remote servers when a connection might get blocked.
• Fixed 3 public security flaws in libevent, which may affect Mozilla-based products. DiD
• Fixed several memory- and thread-safety hazards.
• Fixed an address bar spoofing issue. (CVE-2017-5451)
• Fixed a potentially exploitable crash with HTTP/2. (CVE-2017-5446)
• Fixed several security hazards in XSLT processing. (CVE-2017-5438) (CVE-2017-5439) (CVE-2017-5440)
• Fixed several security hazards in old protocols. (CVE-2017-5444) (CVE-2017-5445)
• Fixed out-of-bounds access in text formatting. (CVE-2017-5447)
• Fixed a potentially exploitable issue with innerText. (CVE-2017-5442)
• Fixed a potentially exploitable issue in graphite font shaping.
• Fixed a potentially exploitable crash with credential-authentication.
  
• Fixed out-of-bounds access with text selection in rare cases.
• Fixed a security hazard in the ANGLE library.

Changes/fixes:

• Fixed up, checked and enabled vertical text writing modes!
  Pale Moon will now be able to display vertical, right-to-left script.
  
• Added the option to reset non-default profiles.
• Fixed various issues in the WebP image decoder.
• Added internally-supported document types to allowed types.
  
• Fixed locale selection in ICU after update to ICU58.
  (Note: Pale Moon uses the system locale for date formatting, not the browser locale)
• Re-implemented the previous spellchecker dictionary logic (allow user override of document/element language, improve logic and make it unambiguous).
• Ongoing fixes for the MP4 parser and MSE.
• Made HTML Media Elements preload attribute MSE-spec compliant.
  The preload attribute on HTML media elements is now ignored in the case of an MSE source. This prevents an issue with sourceopen not firing when preload="none".
• Fixed some issues with Windows WMF media playback.
• Fixed an issue with Synced preferences sometimes overwriting stored individual preferences.
• Fixed display of RSS folder icons.
• Fixed issues with custom context menus.
• Fixed an issue importing bookmarks with separators losing their extra data.
• Changed the way numeric addresses are handled in the address bar so it doesnt perform a search when it shouldnt.
• Added an option (browser.sessionstore.cache_behavior) to control from which source restored tabs pull their page content:
  0 = load restored tab data from cache (current behavior, default)
  1 = refresh restored tab data from the network
  2 = refresh stored tab data from the network and bypass any cached data.
• Improved upon a v27 performance regression with SVG scaling.
• Improved performance by being more selective which CSS animations to process.
  As a side-effect, elements changing their display from "none" to something visible now also animate.
  
• Increased memory allocation for the use of very large PAC files.
• Added menu entries for the permissions manager and improvements to its function and display.
• Added preferences to control "highlight all" behavior of the find bar:
  accessibility.typeaheadfind.highlightallbydefault = true/false highlight all found words by default.
  accessibility.typeaheadfind.highlightallremember = true/false remember the last-used state of Highlight All.
• Added devtools command-line options.
• Added remote IP and protocol to Devtools->Network entry details.
• Added support for
  and
  HTML tags.
• Fixed a regression in the MSIE profile migrator.
• Removed migration of browser-specific settings when migrating data from IE/Safari.
• Implemented optional parameters for permessage-deflate in preparation for RFC7692 errata making acceptance of them mandatory (and to prevent web compat issues doe to the current conflicting text of it).
• Made the image document favicon skinnable.
• Aligned DOM selection addRange with the spec.
  
• Exposed mozAnon constructor js binding to system scopes for XHR.
• Enhanced form data handling from JavaScript.

Minimum system Requirements (Windows):

• Windows Vista/Windows 7/8/10/Server 2008 or later
• Windows Platform Update (Vista/7) strongly recommended
  
• A processor with SSE2 instruction support
  
• 256 MB of free RAM (512 MB or more recommended)
  
• At least 150 MB of free (uncompressed) disk space

Pale Moon includes both 32- and 64-bit versions for Windows, Pale Moon Portable, Pale Moon for Linux and Pale Moon for Android.

Update

To get the update now, select "Help" from the Pale Moon menu at the upper left of the browser window.  Select About Pale Moon > Check for Updates.

References:

• Download
• Known Issues
• Pale Moon Add-ons
• Release Notes

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