This update for MozillaThunderbird and mozilla-nspr fixes the following issues :

Mozilla Thunderbird 78.4

  - new: MailExtensions: browser.tabs.sendMessage API added

  - new: MailExtensions: messageDisplayScripts API added

  - changed: Yahoo and AOL mail users using password     authentication will be migrated to OAuth2

  - changed: MailExtensions: messageDisplay APIs extended to     support multiple selected messages

  - changed: MailExtensions: compose.begin functions now     support creating a message with attachments

  - fixed: Thunderbird could freeze when updating global     search index

  - fixed: Multiple issues with handling of self-signed SSL     certificates addressed

  - fixed: Recipient address fields in compose window could     expand to fill all available space

  - fixed: Inserting emoji characters in message compose     window caused unexpected behavior

  - fixed: Button to restore default folder icon color was     not keyboard accessible

  - fixed: Various keyboard navigation fixes

  - fixed: Various color-related theme fixes

  - fixed: MailExtensions: Updating attachments with     onBeforeSend.addListener() did not work MFSA 2020-47     (bsc#1177977)

  - CVE-2020-15969 Use-after-free in usersctp

  - CVE-2020-15683 Memory safety bugs fixed in Thunderbird     78.4

Mozilla Thunderbird 78.3.3

  - OpenPGP: Improved support for encrypting with subkeys

  - OpenPGP message status icons were not visible in message     header pane

  - Creating a new calendar event did not require an event     title

Mozilla Thunderbird 78.3.2 (bsc#1176899)

  - OpenPGP: Improved support for encrypting with subkeys

  - OpenPGP: Encrypted messages with international     characters were sometimes displayed incorrectly

  - Single-click deletion of recipient pills with middle     mouse button restored

  - Searching an address book list did not display results

  - Dark mode, high contrast, and Windows theming fixes

Mozilla Thunderbird 78.3.1

  - fix crash in nsImapProtocol::CreateNewLineFromSocket

Mozilla Thunderbird 78.3.0 MFSA 2020-44 (bsc#1176756)

  - CVE-2020-15677 Download origin spoofing via redirect

  - CVE-2020-15676 XSS when pasting attacker-controlled data     into a contenteditable element

  - CVE-2020-15678 When recursing through layers while     scrolling, an iterator may have become invalid,     resulting in a potential use-after- free scenario

  - CVE-2020-15673 Memory safety bugs fixed in Thunderbird     78.3

update mozilla-nspr to version 4.25.1

  - The macOS platform code for shared library loading was     changed to support macOS 11.

  - Dependency needed for the MozillaThunderbird udpate

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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SUSE SLED15 / SLES15 Security Update : MozillaThunderbird / mozilla-nspr (SUSE-SU-2020:3091-1)

critical Nessus Plugin ID 143647

Version 1.3