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OpenAdvisories
Unscored USN-5168-2 1 CVE

thunderbird vulnerability

Published Dec 1, 2021 · Updated Apr 22, 2026

Summary

Tavis Ormandy discovered that NSS, included with Thunderbird, incorrectly
handled verifying DSA/RSA-PSS signatures. A remote attacker could use this
issue to cause Thunderbird to crash, resulting in a denial of service, or
possibly execute arbitrary code.

Fixed packages 2

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS thunderbird 1:78.14.0+build1-0ubuntu0.18.04.2
Ubuntu · 20.04 LTS 20.04:LTS thunderbird 1:78.14.0+build1-0ubuntu0.20.04.2

Vulnerabilities 1

References

  • report
    https://ubuntu.com/security/CVE-2021-43527