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[SECURITY] [DLA 4191-1] firefox-esr security update



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Debian LTS Advisory DLA-4191-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/               Emilio Pozuelo Monfort
May 29, 2025                                  https://wiki.debian.org/LTS
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Package        : firefox-esr
Version        : 128.11.0esr-1~deb11u1
CVE ID         : CVE-2025-5263 CVE-2025-5264 CVE-2025-5266 CVE-2025-5267
                 CVE-2025-5268 CVE-2025-5269 CVE-2025-5283

Multiple security issues have been found in the Mozilla Firefox web
browser, which could potentially result in the execution of arbitrary
code or cross-origin leaks.

For Debian 11 bullseye, these problems have been fixed in version
128.11.0esr-1~deb11u1.

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
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