KLA15727 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to obtain sensitive information, spoof user interface, bypass security restrictions, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. Security UI vulnerability in XSLT error handling can be exploited to spoof user interface and obtain sensitive information.
2. Security bypass vulnerability in iframe can be exploited to bypass security restrictions.
3. Memory safety vulnerability can be exploited to execute arbitrary code.

Original advisories

MFSA2022-35

Related products

Mozilla-Firefox-ESR

CVE list

CVE-2022-38478 critical

CVE-2022-38473 critical

CVE-2022-38472 high

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.

• OSI

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

• SB

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

• 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 91.13