Multiple vulnerabilities in Opera

Description

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

Below is a complete list of vulnerabilities:

1. Data validation vulnerability in Mojo can be exploited to bypass security restrictions.
2. Use after free vulnerability in V8 can be exploited to cause denial of service or execute arbitrary code.
3. Heap buffer overflow vulnerability in Swiftshader can be exploited to cause denial of service.
4. Use after free vulnerability in Swiftshader can be exploited to cause denial of service or execute arbitrary code.
5. Security bypass vulnerability in ANGLE can be exploited to bypass security restrictions.

Original advisories

• Changelog for Opera 82

• Stable Channel Update for Desktop

Related products

• Opera

CVE list

• CVE-2021-4100
  unknown
• CVE-2021-4098
  unknown
• CVE-2021-4101
  unknown
• CVE-2021-4099
  unknown
• CVE-2021-4102
  unknown

Read more

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