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A MozillaThunderbird security update has been released for openSUSE Leap 15.2.

openSUSE-SU-2021:0209-1: important: Security update for MozillaThunderbird

openSUSE Security Update: Security update for MozillaThunderbird

Announcement ID: openSUSE-SU-2021:0209-1
Rating: important
References: #1181414
Cross-References: CVE-2020-15685 CVE-2020-26976 CVE-2021-23953
CVE-2021-23954 CVE-2021-23960 CVE-2021-23964

Affected Products:
openSUSE Leap 15.2

An update that fixes 6 vulnerabilities is now available.


This update for MozillaThunderbird fixes the following issues:

- Mozilla Thunderbird was updated to 78.7.0 ESR (MFSA 2021-05,
* CVE-2021-23953: Fixed a Cross-origin information leakage via
redirected PDF requests
* CVE-2021-23954: Fixed a type confusion when using logical assignment
operators in JavaScript switch statements
* CVE-2020-26976: Fixed an issue where HTTPS pages could have been
intercepted by a registered service worker when they should not have
* CVE-2021-23960: Fixed a use-after-poison for incorrectly redeclared
JavaScript variables during GC
* CVE-2021-23964: Fixed Memory safety bugs
* CVE-2020-15685: Fixed an IMAP Response Injection when using STARTTLS

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 15.2:

zypper in -t patch openSUSE-2021-209=1

Package List:

- openSUSE Leap 15.2 (x86_64):