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Ubuntu 19.10 Firefox 4299-1 Moderate: DoS and Code Execution Risks

ubuntu
Calendar Grey March 11, 2020
Dist Ubuntu Esm H88
Ubuntu users must act swiftly to patch Firefox security flaws to avert system crashes and halt unauthorized code execution.
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 URL or

other browser chrome, obtain sensitive information, bypass Content

Security Policy (CSP) protections, or execute arbitrary code.

(CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807,

CVE-2020-6808, CVE-2020-6810, CVE-2020-6812, CVE-2020-6813, CVE-2020-6814,

CVE-2020-6815)

It was discovered that Web Extensions with the all-url permission could

access local files. If a user were tricked in to installing a specially

crafted extension, an attacker could potentially exploit this to obtain

sensitive information. (CVE-2020-6809)

It was discovered that the Devtools' 'Copy as cURL' f...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service arbitrary code execution Ubuntu firefox sensitive information URL spoofing

Update Instructions

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

Ubuntu 19.10:
  firefox                         74.0+build3-0ubuntu0.19.10.1

Ubuntu 18.04 LTS:
  firefox                         74.0+build3-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         74.0+build3-0ubuntu0.16.04.1

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

References

https://ubuntu.com/security/notices/USN-4299-1

CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807,

CVE-2020-6808, CVE-2020-6809, CVE-2020-6810, CVE-2020-6811,

CVE-2020-6812, CVE-2020-6813, CVE-2020-6814, CVE-2020-6815

Severity
important
Lowest
Low
Medium
High
Critical

March 11, 2020

Topics%20covered

Topics Covered

security advisory denial of service arbitrary code execution Ubuntu firefox sensitive information URL spoofing

Package Information

https://launchpad.net/ubuntu/+source/firefox/74.0+build3-0ubuntu0.19.10.1
https://launchpad.net/ubuntu/+source/firefox/74.0+build3-0ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/firefox/74.0+build3-0ubuntu0.16.04.1

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