Multiple vulnerabilities in Mozilla Firefox

Description

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

Below is a complete list of vulnerabilities:

1. Information disclosure vulnerability in Cloud Clipboard for Windows can be exploited to obtain sensitive information.
2. Security UI vulnerability can be exploited to spoof user interface or obtain sensitive information.
3. Security vulnerability in iframe sandbox rules can be exploited to bypass security restrictions.
4. Code execution vulnerability for MacOS can be exploited via special .inetloc files to execute arbitrary code.
5. Use after free vulnerability in file picker dialog can be exploited to cause denial of service.
6. Security vulnerability can be exploited to bypass security restrictions and spoof user interface.
7. Security bypass vulnerability in HTTP2 can be exploited to bypass security restrictions.
8. Security UI vulnerability in Javascript alert box can be exploited to spoof user interface.
9. Information disclosure vulnerability in ‘Copy Image Link’ context menu can be exploited to obtain sensitive information.
10. Security UI vulnerability can be exploited to spoof user interface.
11. Universal cross-site scripting (XSS) vulnerability in Firefox for Android via special crafted QR Code URL can be exploited to perform cross-site scripting attack.
12. Security bypass vulnerability in Web Extensions can be exploited to bypass security restrictions.

Fiches de renseignement originales

• MFSA2021-48

Exploitation

Public exploits exist for this vulnerability.

Produits associés

• Mozilla-Firefox

Liste CVE

• CVE-2021-38505
  high
• CVE-2021-38506
  warning
• CVE-2021-38503
  critical
• CVE-2021-38510
  critical
• CVE-2021-38504
  critical
• CVE-2021-38508
  warning
• CVE-2021-38507
  high
• CVE-2021-38509
  warning
• CVE-2021-43532
  high
• CVE-2021-43533
  warning
• CVE-2021-43530
  high
• CVE-2021-43531
  warning

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