SUSE-SU-2021:0123-1

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    SUSE-SU-2021:0123-1

    Published: 14 Jan 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-16044

    Summary: Security update for MozillaThunderbird

    Details: 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

    References: https://www.suse.com/support/update/announcement/2021/suse-su-20210123-1/, https://bugzilla.suse.com/1180623, https://www.suse.com/security/cve/CVE-2020-16044

    Affected packages

    Package

    Name: MozillaThunderbird

    Purl: pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -78.6.1-8.6.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    SUSE-SU-2021:0123-1 | CVE-DB