Kaspersky ID:
KLA12376
Detect Date:
12/07/2021
Updated:
01/25/2024

Description

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

Below is a complete list of vulnerabilities:

  1. Security UI vulnerability can be exploited to spoof user interface.
  2. Information disclosure vulnerability in XMLHttpRequest can be exploited to obtain sensitive information.
  3. Denial of service vulnerability in Location API can be exploited to cause denial of service.
  4. Information disclosure vulnerability in asynchronous function can be exploited to obtain sensitive information.
  5. Security bypass vulnerability in CSP sandbox directive can be exploited to bypass security restrictions.
  6. Heap buffer overflow vulnerability in structured clone can be exploited to cause denial of service.
  7. Use after free vulnerability in GC can be exploited to cause denial of service.
  8. Security UI vulnerability in full screen and pointer lock can be exploited to spoof user interface.
  9. Security UI vulnerability in cursor can be exploited to spoof user interface.
  10. Security vulnerability in composition area can be exploited to bypass security restrictions.
  11. Memory safety vulnerability can be exploited to execute arbitrary code.

Original advisories

Related products

CVE list

  • CVE-2021-43541
    high
  • CVE-2021-43542
    high
  • CVE-2021-43545
    high
  • CVE-2021-43536
    high
  • CVE-2021-43543
    high
  • CVE-2021-43537
    critical
  • CVE-2021-43539
    critical
  • CVE-2021-43538
    warning
  • CVE-2021-43546
    warning
  • CVE-2021-43528
    high
  • CVE-2021-4129
    critical

Read more

Find out the statistics of the vulnerabilities spreading in your region on statistics.securelist.com

Found an inaccuracy in the description of this vulnerability? Let us know!
Kaspersky Next
Let’s go Next: redefine your business’s cybersecurity
Learn more
New Kaspersky!
Your digital life deserves complete protection!
Learn more
Confirm changes?
Your message has been sent successfully.