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Ubuntu Security Notice USN-4599-1

Ubuntu Security Notice USN-4599-1
Posted Oct 23, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4599-1 - 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, spoof the prompt for opening an external application, obtain sensitive information, or execute arbitrary code.

tags | advisory, denial of service, arbitrary, spoof
systems | linux, ubuntu
advisories | CVE-2020-15254, CVE-2020-15683
MD5 | 13d08b646ab278ff8d67e510be02ed8d

Ubuntu Security Notice USN-4599-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4599-1
October 23, 2020

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

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

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 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, spoof the prompt
for opening an external application, obtain sensitive information, or
execute
arbitrary code.

Update instructions:

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

Ubuntu 20.10:
firefox 82.0+build2-0ubuntu0.20.10.1

Ubuntu 20.04 LTS:
firefox 82.0+build2-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
firefox 82.0+build2-0ubuntu0.18.04.1

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

References:
https://usn.ubuntu.com/4599-1
CVE-2020-15254, CVE-2020-15680, CVE-2020-15681, CVE-2020-15682,
CVE-2020-15683, CVE-2020-15684, CVE-2020-15969

Package Information:
https://launchpad.net/ubuntu/+source/firefox/82.0+build2-0ubuntu0.20.10.1
https://launchpad.net/ubuntu/+source/firefox/82.0+build2-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/82.0+build2-0ubuntu0.18.04.1
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