Debian: DSA-4479-1 Critical: Firefox-ESR Arbitrary Code Threat

Multiple security issues have been found in the Mozilla Firefox web
browser, which could potentially result in the execution of arbitrary
code, cross-site scripting, spoofing, information disclosure, denial of
service or cross-site request forgery.


For the oldstable distribution (stretch), these problems have been fixed
in version 60.8.0esr-1~deb9u1.

For the stable distribution (buster), these problems have been fixed in
version 60.8.0esr-1~deb10u1.

CVE-2019-11719 and CVE-2019-11729 are only addressed for stretch, in
buster Firefox uses the system-wide copy of NSS which will be updated
separately.

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/