QID 376199

Date Published: 2021-12-22

QID 376199: Mozilla Thunderbird Multiple Vulnerabilities (MFSA2021-55)

Thunderbird is a free and open-source cross-platform email client developed for Windows, OS X, and Linux, with a mobile version for Android.

Mozilla Thunderbird is prone to
CVE-2021-4126: OpenPGP signature status doesn't consider additional message content
CVE-2021-44538: Matrix chat library libolm bundled with Thunderbird vulnerable to a buffer overflow

Affected Products:
Prior to Mozilla Thunderbird 91.4.1

QID Detection Logic (Authenticated) :
This checks for vulnerable version of Thunderbird.


Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Vendor has released fix to address these vulnerabilities. Refer to MFSA2021-55 or later
    Vendor References

    CVEs related to QID 376199

    CVE-2021-4126 | CVE-2021-44538 |
    Software Advisories
    Advisory ID Software Component Link
    MFSA2021-55 URL Logo www.mozilla.org/en-US/security/advisories/mfsa2021-55/
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