KLA12416
Multiple vulnerabilities in Mozilla Firefox ESR

Updated: 01/12/2022
Detect date
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01/11/2022
Severity
?
High
Description

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

Below is a complete list of vulnerabilities:

  1. Security bypass vulnerability in iframe sandbox can be exploited via special crafted XSLT markup to bypass security restrictions.
  2. Security UI vulnerability in external protocol launch dialog can be exploited to spoof user interface.
  3. Memory safety vulnerability can be exploited to execute arbitrary code.
  4. Security vulnerability in the “Copy as curl” feature in DevTools on Windows can be exploited to bypass security restrictions.
  5. Heap buffer overflow vulnerability in blendGaussianBlur can be exploited to cause denial of service.
  6. Race condition vulnerability in audio component can be exploited to cause denial of service.
  7. Use after free vulnerability in ChannelEventQueue::mOwner can be exploited to cause denial of service.
  8. Security UI vulnerability in reportValidity on Windows can be exploited to spoof user interface.
  9. Information disclosure vulnerability in securitypolicyviolation event can be exploited to obtain sensitive information.
  10. Security UI vulnerability in fullscreen mode can be exploited to spoof user interface.
  11. Denial of service vulnerability in pkcs7 sequence can be exploited to cause denial of service.
  12. Security UI vulnerability in external protocol launch dialog can be exploited to spoof user interface and bypass security restrictions.
  13. Out of bounds memory access vulnerability in edit mode can be exploited via special crafted text to cause denial of service.
Affected products

Mozilla Firefox ESR earlier than 91.5.0

Solution

Update to the latest version
Download Firefox ESR

Original advisories

MFSA2022-02

Impacts
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ACE 
[?]

OSI 
[?]

DoS 
[?]

SB 
[?]

SUI 
[?]
Related products
Mozilla Firefox ESR
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