KLA12335
Multiple vulnerabilities in Mozilla Firefox

Updated: 12/16/2021
Detect date
?
11/02/2021
Severity
?
High
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.
Affected products

Mozilla Firefox earlier than 94

Solution

Update to the latest version
Download Firefox

Original advisories

MFSA2021-48

Impacts
?
ACE 
[?]

OSI 
[?]

DoS 
[?]

SB 
[?]

XSS/CSS 
[?]

SUI 
[?]
Related products
Mozilla Firefox
CVE-IDS
?
CVE-2021-385054.3Warning
CVE-2021-385064.3Warning
CVE-2021-385037.5Critical
CVE-2021-385106.8High
CVE-2021-385047.5Critical
CVE-2021-385084.3Warning
CVE-2021-385074.3Warning
CVE-2021-385094.3Warning
CVE-2021-435325.8High
CVE-2021-435334.3Warning
CVE-2021-435304.3Warning
CVE-2021-435314.3Warning
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