Debian 9899 Published by

A thunderbird security update has been released for Debian GNU/Linux 10 LTS to address a buffer overflow in parsing WebP images.

[SECURITY] [DLA 3569-1] thunderbird security update

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Debian LTS Advisory DLA-3569-1 Emilio Pozuelo Monfort
September 17, 2023
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Package : thunderbird
Version : 1:102.15.1-1~deb10u1
CVE ID : CVE-2023-4863

A buffer overflow in parsing WebP images may result in the execution of
arbitrary code.

For Debian 10 buster, this problem has been fixed in version

We recommend that you upgrade your thunderbird packages.

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

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: