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Debian LTS Advisory DLA-2745-1                [email protected]
https://www.debian.org/lts/security/               Emilio Pozuelo Monfort
August 16, 2021                               https://wiki.debian.org/LTS
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Package        : thunderbird
Version        : 1:78.13.0-1~deb9u1
CVE ID         : CVE-2021-29980 CVE-2021-29984 CVE-2021-29985 CVE-2021-29986 
                 CVE-2021-29988 CVE-2021-29989

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

For Debian 9 stretch, these problems have been fixed in version
1:78.13.0-1~deb9u1.

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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS