KLA11516 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, perform cross-site scripting attack, spoof user interface, obtain sensitive information, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. Multiple sandbox escape vulnerabilities can be exploited to bypass security restrictions;
2. A CORS bypass vulnerability can be exploited to bypass security restrictions;
3. An use-after-free vulnerability can be exploited to cause denial of service;
4. A race condition vulnerability can be exploited to cause denial of service;
5. A HTML parsing error can be exploited to perform cross-site scripting attack;
6. An improper escape issue can be exploited to spoof user interface;
7. An out-of-bounds read vulnerabilitiy can be exploited to obtain sensitive information;
8. A same-origin policy issue can be exploited to obtain sensitive information;
9. Multiple memory corruptions vulnerabilities can be exploited remotely to execute arbitrary code.

Original advisories

mfsa2019-22

Related products

Mozilla-Firefox-ESR

CVE list

CVE-2019-9811 high

CVE-2019-11711 high

CVE-2019-11712 high

CVE-2019-11713 critical

CVE-2019-11729 warning

CVE-2019-11715 warning

CVE-2019-11717 warning

CVE-2019-11719 warning

CVE-2019-11730 warning

CVE-2019-11709 critical

Solution

Update to the latest version

Download Mozilla Firefox ESR

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

• XSS/CSS

Cross site scripting. Exploitation of vulnerabilities with this impact can lead to partial interception of information transmitted between user and site.

• SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

• Mozilla Firefox ESR earlier than 60.8