USN-4054-1: Firefox vulnerabilities

USN-4054-1: Firefox vulnerabilities

firefox vulnerabilities

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

• Ubuntu 19.04
• Ubuntu 18.10
• 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

A sandbox escape was discovered in Firefox. If a user were tricked in to
installing a malicious language pack, an attacker could exploit this to
gain additional privileges. (CVE-2019-9811)

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 same origin restrictions, conduct cross-site scripting
(XSS) attacks, conduct cross-site request forgery (CSRF) attacks, spoof
origin attributes, spoof the addressbar contents, bypass safebrowsing
protections, or execute arbitrary code. (CVE-2019-11709, CVE-2019-11710,
CVE-2019-11711, CVE-2019-11712, CVE-2019-11713, CVE-2019-11714,
CVE-2019-11715, CVE-2019-11716, CVE-2019-11717, CVE-2019-11718,
CVE-2019-11719, CVE-2019-11720, CVE-2019-11721, CVE-2019-11723,
CVE-2019-11724, CVE-2019-11725, CVE-2019-11727, CVE-2019-11728,
CVE-2019-11729)

It was discovered that Firefox treats all files in a directory as same
origin. If a user were tricked in to downloading a specially crafted HTML
file, an attacker could potentially exploit this to obtain sensitive
information from local files. (CVE-2019-11730)

Update instructions

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

Ubuntu 19.04

firefox – 68.0+build3-0ubuntu0.19.04.1

Ubuntu 18.10

firefox – 68.0+build3-0ubuntu0.18.10.1

Ubuntu 18.04 LTS

firefox – 68.0+build3-0ubuntu0.18.04.1

Ubuntu 16.04 LTS

firefox – 68.0+build3-0ubuntu0.16.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2019-11709
• CVE-2019-11710
• CVE-2019-11711
• CVE-2019-11712
• CVE-2019-11713
• CVE-2019-11714
• CVE-2019-11715
• CVE-2019-11716
• CVE-2019-11717
• CVE-2019-11718
• CVE-2019-11719
• CVE-2019-11720
• CVE-2019-11721
• CVE-2019-11723
• CVE-2019-11724
• CVE-2019-11725
• CVE-2019-11727
• CVE-2019-11728
• CVE-2019-11729
• CVE-2019-11730
• CVE-2019-9811

Source: USN-4054-1: Firefox vulnerabilities