Security update for MozillaThunderbird (important)

An update that fixes one vulnerability is now available.

Description:

This update for MozillaThunderbird fixes the following issues:

• Mozilla Thunderbird 78.6.1
  • changed: MailExtensions: browserAction, composeAction, and
    messageDisplayAction toolbar buttons now support label and
    default_label properties (bmo#1583478)
  • fixed: Running a quicksearch that returned no results did not
    offer to re-run as a global search (bmo#1663153)
  • fixed: Message search toolbar fixes (bmo#1681010)
  • fixed: Very long subject lines distorted the message compose and
    display windows, making them unusable (bmo#77806)
  • fixed: Compose window: Recipient addresses that had not yet been
    autocompleted were lost when clicking Send button (bmo#1674054)
  • fixed: Compose window: New message is no longer marked as “changed”
    just from tabbing out of the recipient field without editing anything
    (bmo#1681389)
  • fixed: Account autodiscover fixes when using MS Exchange servers
    (bmo#1679759)
  • fixed: LDAP address book stability fix (bmo#1680914)
  • fixed: Messages with invalid vcard attachments were not marked as read
    when viewed in the preview window (bmo#1680468)
  • fixed: Chat: Could not add TLS certificate exceptions for XMPP
    connections (bmo#1590471)
  • fixed: Calendar: System timezone was not always properly detected
    (bmo#1678839)
  • fixed: Calendar: Descriptions were sometimes blank when editing a
    single occurrence of a repeating event (bmo#1664731)
  • fixed: Various printing bugfixes (bmo#1676166)
  • fixed: Visual consistency and theme improvements (bmo#1682808) MFSA
    2021-02 (bsc#1180623)
  • CVE-2020-16044 (bmo#1683964) Use-after-free write when handling a
    malicious COOKIE-ECHO SCTP chunk

This update was imported from the SUSE:SLE-15: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 15.1:

  zypper in -t patch openSUSE-2021-127=1