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Debian 11 bullseye: DLA-4172-1 critical: firefox-esr sandbox bypass

debian lts
Calendar Grey May 20, 2025
Dist Debian Esm H88
Several vulnerabilities detected in Firefox might enable unintended code execution or circumvent isolation measures.
Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code or a bypass of sandbox restrictions
Topics%20covered

Topics Covered

security advisory update debian firefox arbitrary code sandbox bypass

Summary

For Debian 11 bullseye, these problems have been fixed in version
128.10.1esr-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/source-package/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


Severity
critical
Lowest
Low
Medium
High
Critical

Package: firefox-esr
Version: 128.10.1esr-1~deb11u1
CVE ID: CVE-2025-4083 CVE-2025-4087 CVE-2025-4091 CVE-2025-4093

Topics%20covered

Topics Covered

security advisory update debian firefox arbitrary code sandbox bypass

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