Multiple vulnerabilities in Mozilla Firefox ESR

Description

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. A memory corruption vulnerability on Linux can be exploited to cause denial of service.
2. A memory corruption vulnerability can be exploited to cause denial of service.
3. A memory safety vulnerability can be exploited to execute arbitrary code.
4. A use after free vulnerability in media channels can be exploited to cause denial of service.
5. A uninitialized memory vulnerability in canvas can be epxloted to cause denial of service.
6. A memory corruption vulnerability in JIT optimization can be exploited to cause denial of service.

Original advisories

• MFSA2021-34

Exploitation

Public exploits exist for this vulnerability.

Related products

• Mozilla-Firefox-ESR

CVE list

• CVE-2021-29986
  critical
• CVE-2021-29988
  critical
• CVE-2021-29989
  critical
• CVE-2021-29985
  critical
• CVE-2021-29980
  critical
• CVE-2021-29984
  critical

Read more

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