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Debian Bullseye DSA-5237-1 Critical: Firefox-ESR Code Execution

debian
Calendar Grey September 23, 2022
Debian Logo
Ubuntu Security Notice USN-5221-1 highlights urgent vulnerabilities in thunderbird. Immediate patching advised.
Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, CSP bypass or session fixation

Summary

Debian follows the extended support releases (ESR) of Firefox. Support
for the 91.x series has ended, so starting with this update we're now
following the 102.x releases.

Between 91.x and 102.x, Firefox has seen a number of feature updates.
For more information please refer to
https://www.firefox.com/en-US/firefox/102.0esr/releasenotes/?redirect_source=mozilla-org

For the stable distribution (bullseye), these problems have been fixed in
version 102.3.0esr-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/source-package/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/



Severity
critical
Lowest
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Critical

Package: firefox-esr
CVE ID: CVE-2022-40956 CVE-2022-40957 CVE-2022-40958 CVE-2022-40959

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