Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Title Firefox regressions
Name USN-4054-2 First vendor Publication 2019-07-25
Vendor Ubuntu Last vendor Modification 2019-07-25
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


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

- Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS


USN-4054-1 caused some minor regressions in Firefox.

Software Description: - firefox: Mozilla Open Source web browser


USN-4054-1 fixed vulnerabilities in Firefox. The update introduced various minor regressions. This update fixes the problems.

We apologize for the inconvenience.

Original advisory details:

テつ A sandbox escape was discovered in Firefox. If a user were tricked in to テつ installing a malicious language pack, an attacker could exploit this to テつ gain additional privileges. (CVE-2019-9811) テつ テつ Multiple security issues were discovered in Firefox. If a user were テつ tricked in to opening a specially crafted website, an attacker could テつ potentially exploit these to cause a denial of service, obtain sensitive テつ information, bypass same origin restrictions, conduct cross-site scripting テつ (XSS) attacks, conduct cross-site request forgery (CSRF) attacks, spoof テつ origin attributes, spoof the addressbar contents, bypass safebrowsing テつ protections, or execute arbitrary code. (CVE-2019-11709, CVE-2019-11710, テつ CVE-2019-11711, CVE-2019-11712, CVE-2019-11713, CVE-2019-11714, テつ CVE-2019-11715, CVE-2019-11716, CVE-2019-11717, CVE-2019-11718, テつ CVE-2019-11719, CVE-2019-11720, CVE-2019-11721, CVE-2019-11723, テつ CVE-2019-11724, CVE-2019-11725, CVE-2019-11727, CVE-2019-11728, テつ CVE-2019-11729) テつ テつ It was discovered that Firefox treats all files in a directory as same テつ origin. If a user were tricked in to downloading a specially crafted HTML テつ file, an attacker could potentially exploit this to obtain sensitive テつ 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: テつ firefoxテつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ 68.0.1+build1-0ubuntu0.19.04.1

Ubuntu 18.04 LTS: テつ firefoxテつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ 68.0.1+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS: テつ firefoxテつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ テつ 68.0.1+build1-0ubuntu0.16.04.1

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

References: テつ https://usn.ubuntu.com/4054-2 テつ https://usn.ubuntu.com/4054-1 テつ https://launchpad.net/bugs/1837941

Package Information: テつ https://launchpad.net/ubuntu/+source/firefox/68.0.1+build1-0ubuntu0.19.04.1 テつ https://launchpad.net/ubuntu/+source/firefox/68.0.1+build1-0ubuntu0.18.04.1 テつ https://launchpad.net/ubuntu/+source/firefox/68.0.1+build1-0ubuntu0.16.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-4054-2

CWE : Common Weakness Enumeration

% Id Name
19 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer
12 % CWE-79 Failure to Preserve Web Page Structure ('Cross-site Scripting') (CWE/SANS Top 25)
12 % CWE-74 Failure to Sanitize Data into a Different Plane ('Injection')
12 % CWE-20 Improper Input Validation
6 % CWE-668 Exposure of Resource to Wrong Sphere
6 % CWE-416 Use After Free
6 % CWE-352 Cross-Site Request Forgery (CSRF) (CWE/SANS Top 25)
6 % CWE-346 Origin Validation Error
6 % CWE-295 Certificate Issues
6 % CWE-125 Out-of-bounds Read
6 % CWE-116 Improper Encoding or Escaping of Output

CPE : Common Platform Enumeration

Application 536
Application 132
Application 405
Os 1
Os 2

Alert History

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Date Informations
2019-07-26 00:18:52
  • First insertion