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Ubuntu Security Notice USN-4234-1

Ubuntu Security Notice USN-4234-1
Posted Jan 10, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4234-1 - 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, obtain sensitive information, bypass Content Security Policy restrictions, conduct cross-site scripting attacks, or execute arbitrary code.

tags | advisory, denial of service, arbitrary, xss
systems | linux, ubuntu
advisories | CVE-2019-17016, CVE-2019-17023
SHA-256 | a0805f0ee3a6396ecc66da71874e6646c37228e4000732d37e82a0deffaaf360

Ubuntu Security Notice USN-4234-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4234-1
January 09, 2020

firefox vulnerabilities
==========================================================================

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

- Ubuntu 19.10
- Ubuntu 19.04
- 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, obtain sensitive
information, bypass Content Security Policy (CSP) restrictions, conduct
cross-site scripting (XSS) attacks, or execute arbitrary code.

Update instructions:

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

Ubuntu 19.10:
firefox 72.0.1+build1-0ubuntu0.19.10.1

Ubuntu 19.04:
firefox 72.0.1+build1-0ubuntu0.19.04.1

Ubuntu 18.04 LTS:
firefox 72.0.1+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
firefox 72.0.1+build1-0ubuntu0.16.04.1

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

References:
https://usn.ubuntu.com/4234-1
CVE-2019-17016, CVE-2019-17017, CVE-2019-17020, CVE-2019-17022,
CVE-2019-17023, CVE-2019-17024, CVE-2019-17025, CVE-2019-17026

Package Information:

https://launchpad.net/ubuntu/+source/firefox/72.0.1+build1-0ubuntu0.19.10.1

https://launchpad.net/ubuntu/+source/firefox/72.0.1+build1-0ubuntu0.19.04.1

https://launchpad.net/ubuntu/+source/firefox/72.0.1+build1-0ubuntu0.18.04.1

https://launchpad.net/ubuntu/+source/firefox/72.0.1+build1-0ubuntu0.16.04.1

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