Debian Security Advisory

DLA-2243-1 firefox-esr -- LTS security update

Date Reported:
09 Jun 2020
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2020-12399, CVE-2020-12405, CVE-2020-12406, CVE-2020-12410.
More information:

Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code or a timing attack on cryptographic keys.

For Debian 8 Jessie, these problems have been fixed in version 68.9.0esr-1~deb8u2.

Note: 68.9.0esr-1~deb8u2 fixes an i386 build error in the otherwise identical 68.9.0esr-1~deb8u1 that was uploaded but not announced.

We recommend that you upgrade your firefox-esr packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: