KLA49166 Multiple vulnerabilities in Mozilla Firefox ESR

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

Below is a complete list of vulnerabilities:

1. Denial of service vulnerability in Content process can be exploited to cause denial of service.
2. Denial of service vulnerability in Exposed protocol handlers can be exploited to cause denial of service.
3. Out of bounds vulnerability in RLBox Expat driver can be exploited to cause denial of service.
4. Security UI vulnerability in Popups can be exploited to spoof user interface.
5. Security UI vulnerability in Address bar can be exploited to spoof user interface.
6. Memory corruption vulnerability in FileReader can be exploited remotely to cause denial of service or execute arbitrary code.
7. Elevation of privilege vulnerability in Popup notifications can be exploited remotely to gain privileges.
8. Memory safety vulnerability can be exploited to execute arbitrary code.

Original advisories

MFSA2023-17

Related products

Mozilla-Firefox-ESR

CVE list

CVE-2023-32206 high

CVE-2023-32205 warning

CVE-2023-32211 high

CVE-2023-32213 critical

CVE-2023-32207 critical

CVE-2023-32214 critical

CVE-2023-32215 critical

CVE-2023-32212 warning

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.

• 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 102.11