Security update for MozillaThunderbird (important)

An update that fixes four vulnerabilities is now available.

Description:

This update for MozillaThunderbird fixes the following issues:

• Mozilla Thunderbird 78.8
  • fixed: Importing an address book from a CSV file always reported an
    error
  • fixed: Security information for S/MIME messages was not displayed
    correctly prior to a draft being saved
  • fixed: Calendar: FileLink UI fixes for Caldav calendars
  • fixed: Recurring tasks were always marked incomplete; unable to use
    filters
  • fixed: Various UI widgets not working
  • fixed: Dark theme improvements
  • fixed: Extension manager was missing link to addon support web page
  • fixed: Various security fixes MFSA 2021-09 (bsc#1182614)
  • CVE-2021-23969: Content Security Policy violation report could have
    contained the destination of a redirect
  • CVE-2021-23968: Content Security Policy violation report could have
    contained the destination of a redirect
  • CVE-2021-23973: MediaError message property could have leaked
    information about cross-origin resources
  • CVE-2021-23978: Memory safety bugs fixed in Thunderbird 78.8

This update was imported from the SUSE:SLE-15-SP2:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Leap 15.2:

  zypper in -t patch openSUSE-2021-387=1