KLA11589 Multiple vulnerabilities in Mozilla Firefox

Multiple vulnerabilities were found in Mozilla Firefox. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary code, bypass security restrictions, gain privileges, spoof user interface.

Below is a complete list of vulnerabilities:

1. Heap buffer overflow vulnerability can be exploited to cause denial of service;
2. Unspecified vulnerability in libexpat can be exploited remotely via specially designed XML-file to obtain sensitive information;
3. Vulnerability can be exploited to bypass security restrictions;
4. Use-after-free vulnerability can be exploited to cause denial of service;
5. Vulnerability related to CSP can be exploited to bypass security restrictions;
6. A Vulnerability can be exploited to cause denial of service;
7. Stack buffer overflow vulnerability can be exploited to cause denial of service;
8. A Vulnerability can be exploited to gain privileges;
9. Vulnerability related to document.domain can be exploited to execute arbitrary code;
10. Memory safety vulnerability can be exploited to execute arbitrary code;
11. Vulnerability related to HTML parsing can be exploited remotely to bypass security restrictions;
12. Vulnerability in history api can be exploited remotely to spoof user interface.

Original advisories

Advisory 2019-34

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Mozilla-Firefox

CVE list

CVE-2018-6156 high

CVE-2019-15903 warning

CVE-2019-11761 high

CVE-2019-11757 high

CVE-2019-17001 high

CVE-2019-17002 warning

CVE-2019-11760 high

CVE-2019-11765 warning

CVE-2019-11759 high

CVE-2019-11762 high

CVE-2019-17000 high

CVE-2019-11764 high

CVE-2019-11763 warning

CVE-2020-12412 warning

Solution

Update to the latest version

Download Mozilla Firefox

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.

• 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.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

• 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 earlier than 70