A thunderbird security update has been released for Debian GNU/Linux 11 and 12 to address multiple security issues that could result in denial of service or the execution of arbitrary code.

[SECURITY] [DSA 5538-1] thunderbird security update

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Debian Security Advisory DSA-5538-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
October 27, 2023 https://www.debian.org/security/faq
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Package : thunderbird
CVE ID : CVE-2023-5721 CVE-2023-5724 CVE-2023-5725 CVE-2023-5728
CVE-2023-5730 CVE-2023-5732

Multiple security issues were discovered in Thunderbird, which could
result in denial of service or the execution of arbitrary code.

For the oldstable distribution (bullseye), these problems have been fixed
in version 1:115.4.1-1~deb11u1.

For the stable distribution (bookworm), these problems have been fixed in
version 1:115.4.1-1~deb12u1.

We recommend that you upgrade your thunderbird packages.

For the detailed security status of thunderbird please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/thunderbird

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/