KLA12150
Multiple vulnerabilities in Mozilla Firefox ESR

Updated: 05/27/2021
Detect date
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04/19/2021
Severity
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High
Description

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

Below is a complete list of vulnerabilities:

  1. Memory corruption and vulnerability can be exploited to cause denial of service;
  2. A security vulnerability can be exploited to bypass security restrictions;
  3. A integer overflow vulnerability can be exploited to security bypass restrictions;
  4. A Null read vulnerability related to WebAssembly JIT can be exploited to cause denial of service;
  5. A vulnerability related to FTP URL can be exploited to execute arbitrary code;
  6. A vulnerability related to secure lock icon can be exploited to spoof user interface;
  7. A memory safety vulnerability related to Responsive Design Mode can be exploited to execute arbitrary code;
  8. Elevation of privilege vulnerability related to Blob URL can be exploited to gain privileges;
Affected products

Mozilla Firefox ESR earlier than 78.10

Solution

Update to the latest version
Download Firefox ESR

Original advisories

mfsa2021-15

Impacts
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ACE 
[?]

DoS 
[?]

SB 
[?]

PE 
[?]

SUI 
[?]
Related products
Mozilla Firefox ESR
CVE-IDS
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