=========================================================================Ubuntu Security Notice USN-4474-1
August 26, 2020

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 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:

Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, trick the user
in to installing a malicious extension, spoof the URL bar, leak sensitive
information between origins, or execute arbitrary code. (CVE-2020-15664,
CVE-2020-15665, CVE-2020-15666, CVE-2020-15670)

It was discovered that NSS incorrectly handled certain signatures.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)

A data race was discovered when importing certificate information in to
the trust store. An attacker could potentially exploit this to cause an
unspecified impact. (CVE-2020-15668)

Update instructions:

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

Ubuntu 20.04 LTS:
  firefox                         80.0+build2-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  firefox                         80.0+build2-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         80.0+build2-0ubuntu0.16.04.1

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

References:
  https://ubuntu.com/security/notices/USN-4474-1
  CVE-2020-12400, CVE-2020-12401, CVE-2020-15664, CVE-2020-15665,
  CVE-2020-15666, CVE-2020-15668, CVE-2020-15670, CVE-2020-6829

Package Information:
  https://launchpad.net/ubuntu/+source/firefox/80.0+build2-0ubuntu0.20.04.1
  https://launchpad.net/ubuntu/+source/firefox/80.0+build2-0ubuntu0.18.04.1
  https://launchpad.net/ubuntu/+source/firefox/80.0+build2-0ubuntu0.16.04.1

Ubuntu 4474-1: Firefox vulnerabilities

August 26, 2020
Firefox could be made to crash or run programs as your login if it opened a malicious website.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: firefox 80.0+build2-0ubuntu0.20.04.1 Ubuntu 18.04 LTS: firefox 80.0+build2-0ubuntu0.18.04.1 Ubuntu 16.04 LTS: firefox 80.0+build2-0ubuntu0.16.04.1 After a standard system update you need to restart Firefox to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4474-1

CVE-2020-12400, CVE-2020-12401, CVE-2020-15664, CVE-2020-15665,

CVE-2020-15666, CVE-2020-15668, CVE-2020-15670, CVE-2020-6829

Severity
August 26, 2020

Package Information

https://launchpad.net/ubuntu/+source/firefox/80.0+build2-0ubuntu0.20.04.1 https://launchpad.net/ubuntu/+source/firefox/80.0+build2-0ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/firefox/80.0+build2-0ubuntu0.16.04.1

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