Ubuntu Security Notice USN-4474-1 ≈ Packet Storm – Digitalmunition

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Published on August 26th, 2020 📆 | 1688 Views ⚑


Ubuntu Security Notice USN-4474-1 ≈ Packet Storm

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


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


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.

CVE-2020-12400, CVE-2020-12401, CVE-2020-15664, CVE-2020-15665,
CVE-2020-15666, CVE-2020-15668, CVE-2020-15670, CVE-2020-6829

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