Multiple vulnerabilities in Opera

Description

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

Below is a complete list of vulnerabilities:

1. Use after free in Garbage Collection can be exploited to cause denial of service or execute arbitrary code.
2. Heap buffer overflow vulnerability in Blink can be exploited to cause denial of service.
3. Heap buffer overflow vulnerability in WebRTC can be exploited to cause denial of service.
4. Inappropriate implementation in Sandbox can be exploited to cause denial of service.

Original advisories

• Changelog for Opera 80

• Stable Channel Update for Desktop

Exploitation

Public exploits exist for this vulnerability.

Related products

• Opera

CVE list

• CVE-2021-37978
  critical
• CVE-2021-37979
  critical
• CVE-2021-37977
  critical
• CVE-2021-37980
  high

Read more

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