Debian Security Advisory

DSA-5034-1 thunderbird -- security update

Date Reported:
02 Jan 2022
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-4126, CVE-2021-38496, CVE-2021-38500, CVE-2021-38502, CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509, CVE-2021-43528, CVE-2021-43529, CVE-2021-43534, CVE-2021-43535, CVE-2021-43536, CVE-2021-43537, CVE-2021-43538, CVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543, CVE-2021-43545, CVE-2021-43546, CVE-2021-44538.
More information:

Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code, spoofing, information disclosure, downgrade attacks on SMTP STARTTLS connections or misleading display of OpenPGP/MIME signatures.

For the oldstable distribution (buster), these problems have been fixed in version 1:91.4.1-1~deb10u1.

For the stable distribution (bullseye), these problems have been fixed in version 1:91.4.1-1~deb11u1.

We recommend that you upgrade your thunderbird packages.

For the detailed security status of thunderbird please refer to its security tracker page at: