Multiple vulnerabilities in Opera

Descripción

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

Below is a complete list of vulnerabilities:

1. A use after free vulnerability in WebGL can be exploited to cause denial of service or execute arbitrary code.
2. A use after free vulnerability in TabGroups can be exploited to cause denial of service or execute arbitrary code.
3. A use after free vulnerability in WebAudio can be exploited to cause denial of service or execute arbitrary code.
4. A use after free vulnerability in Sharing can be exploited to cause denial of service or execute arbitrary code.

Notas informativas originales

• Changelog for Opera 77

• Stable Channel Update for Desktop

Explotación

Public exploits exist for this vulnerability.

Lista CVE

• CVE-2021-30556
  critical
• CVE-2021-30555
  critical
• CVE-2021-30554
  critical
• CVE-2021-30557
  critical

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