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Debian LTS Advisory DLA-2496-1                [email protected]
https://www.debian.org/lts/security/               Emilio Pozuelo Monfort
December 16, 2020                             https://wiki.debian.org/LTS
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Package        : firefox-esr
Version        : 78.6.0esr-1~deb9u1
CVE ID         : CVE-2020-16042 CVE-2020-26971 CVE-2020-26973 CVE-2020-26974
                 CVE-2020-26978 CVE-2020-35111 CVE-2020-35113

Multiple security issues have been found in the Mozilla Firefox web
browser, which could potentially result in the execution of arbitrary
code, information disclosure or CSS sanitiser bypass.

For Debian 9 stretch, these problems have been fixed in version
78.6.0esr-1~deb9u1.

We recommend that you upgrade your firefox-esr packages.

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

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