[DSA 6078-1] firefox-esr security update

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Debian Security Advisory DSA-6078-1                   [email protected]
https://www.debian.org/security/                       Moritz Muehlenhoff
December 10, 2025                     https://www.debian.org/security/faq
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Package        : firefox-esr
CVE ID         : CVE-2025-14321 CVE-2025-14322 CVE-2025-14323 CVE-2025-14324 
                 CVE-2025-14325 CVE-2025-14328 CVE-2025-14329 CVE-2025-14330 
                 CVE-2025-14331 CVE-2025-14333

Multiple security issues have been found in the Mozilla Firefox web
browser, which could potentially result in the execution of arbitrary
code, sandbox escape, same-origin policy bypass or privilege escalation.

For the oldstable distribution (bookworm), these problems have been fixed
in version 140.6.0esr-1~deb12u1.

For the stable distribution (trixie), these problems have been fixed in
version 140.6.0esr-1~deb13u1.

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

Mailing list: [email protected]
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