KLA11824 Multiple vulnerabilities in Mozilla Firefox

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

Below is a complete list of vulnerabilities:

1. Memory corruption vulnerability on JavaScript Objects on ARM64 platforms can be exploited to potentially cause denial of service.
2. URI vulnerability in WebRTC can be exploited to perform domain spoofing and bypass security restrictions.
3. SB vulnerability in add-on updates can be exploited to bypass security restrictions.
4. Use after free vulnerability in a pointer can be exploited to potentially cause denial of service.
5. Out of bounds read vulnerability Date.parse() component can be exploited to potentially obtain sensitive information.
6. Use after free vulnerability in WebRTC VideoBroadcaster can be exploited to potentially cause denial of service.
7. Memory vulnerability in Firefox can be exploited to execute arbitrary code.
8. Integer overflow vulnerability in nsJPEGEncoder::emptyOutputBuffer component can be exploited to potentially cause denial of service.
9. Information disclosure vulnerbaility in URL object can be exploited to obtain sensitive information.
10. DLL Hijacking vulnerability in webauthn.dll on Windows can be exploited to execute arbitrary code.
11. SB vulnerability in AppCache can be exploited to bypass security restrictions.
12. RSA key generation vulnerability can be exploited to bypass security restrictions and obtain sensitive information.
13. Use after free vulnerability in nsGlobalWindowInner component can be exploited to potentially cause denial of service.

Original advisories

MFSA2020-24

Related products

Mozilla-Firefox

CVE list

CVE-2020-12417 critical

CVE-2020-12424 warning

CVE-2020-12421 warning

CVE-2020-12420 critical

CVE-2020-12425 warning

CVE-2020-12416 critical

CVE-2020-12426 critical

CVE-2020-12422 critical

CVE-2020-12418 warning

CVE-2020-12423 high

CVE-2020-12415 warning

CVE-2020-12402 warning

CVE-2020-12419 critical

Solution

Update to the latest version

Download 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.

• OSI

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

• 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.

• 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 78.0.1