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Ubuntu Security Notice USN-3919-1
March 25, 2019

firefox vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Firefox could be made to crash or run programs as your login if it
opened a malicious website.

Software Description:
- firefox: Mozilla Open Source web browser

Details:

Two security issues were discovered in the JavaScript engine in Firefox.
If a user were tricked in to opening a specially crafted website, an
attacker could exploit this by causing a denial of service, or executing
arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
  firefox                         66.0.1+build1-0ubuntu0.18.10.1

Ubuntu 18.04 LTS:
  firefox                         66.0.1+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         66.0.1+build1-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  firefox                         66.0.1+build1-0ubuntu0.14.04.1

After a standard system update you need to restart Firefox to make
all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3919-1
  CVE-2019-9810, CVE-2019-9813

Package Information:
 
https://launchpad.net/ubuntu/+source/firefox/66.0.1+build1-0ubuntu0.18.10.1
 
https://launchpad.net/ubuntu/+source/firefox/66.0.1+build1-0ubuntu0.18.04.1
 
https://launchpad.net/ubuntu/+source/firefox/66.0.1+build1-0ubuntu0.16.04.1
 
https://launchpad.net/ubuntu/+source/firefox/66.0.1+build1-0ubuntu0.14.04.1