MGASA-2021-0066

    Dashboard / Vulnerabilities / MGASA-2021-0066

    MGASA-2021-0066

    Published: 4 Feb 2021Last Modified: 16 Apr 2026

    Summary: Updated thunderbird packages fix security vulnerabilities

    Details: Cross-origin information leakage via redirected PDF requests. (CVE-2021-23953) Type confusion when using logical assignment operators in JavaScript switch statements. (CVE-2021-23954) IMAP Response Injection when using STARTTLS. (CVE-2020-15685) HTTPS pages could have been intercepted by a registered service worker when they should not have been. (CVE-2020-26976) Use-after-poison for incorrectly redeclared JavaScript variables during GC. (CVE-2021-23960) Memory safety bugs fixed in Thunderbird 78.7. (CVE-2021-23964).

    References: https://advisories.mageia.org/MGASA-2021-0066.html, https://bugs.mageia.org/show_bug.cgi?id=28247, https://www.mozilla.org/en-US/security/advisories/mfsa2021-05/, https://www.thunderbird.net/en-US/thunderbird/78.7.0/releasenotes/

    Affected packages

    Package

    Name: thunderbird

    Purl: pkg:rpm/mageia/thunderbird?arch=source&distro=mageia-7

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -78.7.0-1.mga7

    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
    MGASA-2021-0066 | CVE-DB