KLA51619 Multiple vulnerabilities in Mozilla Firefox ESR

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

Below is a complete list of vulnerabilities:

1. An elevation of privilege vulnerability in popup notifications can be exploited remotely to gain privileges.
2. Security UI vulnerability can be exploited to spoof user interface and execute arbitrary code.
3. Out of bounds read vulnerability in DOMParser can be exploited to cause denial of service.
4. Denial of service vulnerability in WASM JIT analysis can be exploited to cause denial of service.
5. Memory safety vulnerability can be exploited to execute arbitrary code.
6. An elevation of privilege vulnerability in Firefox uninstaller can be exploited remotely to gain privileges.
7. Cookie jar overflow vulnerability can be exploited to cause denial of service.
8. Use after free vulnerability can be exploited to cause denial of service or execute arbitrary code.
9. Security vulnerability in Offscreen Canvas can be exploited to bypass security restrictions.
10. Stack buffer overflow vulnerability in StorageManager can be exploited remotely to cause denial of service.

Original advisories

MFSA2023-31

Related products

Mozilla-Firefox-ESR

CVE list

CVE-2023-4047 critical

CVE-2023-4054 high

CVE-2023-4046 high

CVE-2023-4056 critical

CVE-2023-4048 critical

CVE-2023-4052 high

CVE-2023-4049 high

CVE-2023-4055 critical

CVE-2023-4057 critical

CVE-2023-4045 high

CVE-2023-4050 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.

• PE

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

• 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 Thunderbird 115.x earlier than 115.1