KLA73124 Multiple vulnerabilities in Mozilla Firefox ESR

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

Below is a complete list of vulnerabilities:

1. Memory safety vulnerability can be exploited to execute arbitrary code.
2. Cross-site scripting (XSS) vulnerability can be exploited to perform cross-site scripting attack.
3. Type confusion vulnerability when looking up a property name in a “with” block can be exploited to cause denial of service.
4. Type confusion vulnerability in WASM can be exploited to cause denial of service.
5. Security vulnerability can be exploited to bypass security restrictions.
6. Security UI vulnerability can be exploited to spoof user interface.

Original advisories

MFSA2024-40

Related products

Mozilla-Firefox-ESR

CVE list

CVE-2024-8387 critical

CVE-2024-8383 critical

CVE-2024-8381 critical

CVE-2024-8385 critical

CVE-2024-8386 high

CVE-2024-8382 critical

CVE-2024-8384 critical

Solution

Update to the latest version

Download 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.

• 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 128.2