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Ubuntu 20.10: USN-4599-1 Critical: Firefox Crash And DoS Threat

ubuntu
Calendar Grey October 23, 2020
Dist Ubuntu Esm H88
Ubuntu Security Advisory USN-4599-1 highlights vulnerabilities in Firefox that may lead to browser crashes or execution of unsolicited commands.
Firefox could be made to crash or run programs as your login if it opened a malicious website.

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.

Topics%20covered

Topics Covered

security advisory denial of service critical software update firefox ubuntu malicious website

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://ubuntu.com/security/notices/USN-4599-1

CVE-2020-15254, CVE-2020-15680, CVE-2020-15681, CVE-2020-15682,

CVE-2020-15683, CVE-2020-15684, CVE-2020-15969

Severity
critical
Lowest
Low
Medium
High
Critical

October 23, 2020

Topics%20covered

Topics Covered

security advisory denial of service critical software update firefox ubuntu malicious website

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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