Multiple vulnerabilities in Opera

Description

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

Below is a complete list of vulnerabilities:

1. A implementation vulnerability in WebView component can be exploited to execute arbitrary code.
2. A policy enforcement vulnerability in extensions components can be exploited remotely to bypass same origin policy.
3. A policy enforcement vulnerability in trusted types can be exploited to bypass same origin policy.
4. A policy enforcement vulnerability in full screen component can be exploited to bypass same origin policy.
5. Out of bounds read vulnerability in WebSQL can be exploited to cause denial of service.
6. A policy enforcement vulnerability in navigations components can be exploited can be exploited to bypass same origin policy.
7. Type confusion vulnerability in V8 component can be exploited to cause denial of service.
8. Use after free vulnerability in V8 component can be exploited to execute arbitrary code.
9. A policy enforcement vulnerability in extensions components can be exploited to bypass same origin policy.
10. A policy enforcement vulnerability in navigations components can be exploited to bypass same origin policy.
11. Use after free vulnerability in extensions components can be exploited to execute arbitrary code.
12. Uninitialized use vulnerability in WebRTC component can be exploited to bypass security restrictions and obtain sensitive information
13. A data validation vulnerability in developer tools can be exploited to bypass security restrictions.
14. A validation of untrusted input vulnerability in clipboard component can be exploited to bypass security restrictions.
15. A implementation vulnerability in extensions components can be exploited to execute arbitrary code.
16. A policy enforcement vulnerability in omnibox component can be exploited to bypass same origin policy.
17. A implementation vulnerability in developer tools can be exploited to execute arbitrary code.
18. Use after free vulnerability in developer tools can be exploited to execute arbitrary code.
19. Use after free vulnerability in window management can be exploited to execute arbitrary code.
20. A implementation vulnerability in cache component can be exploited to execute arbitrary code.
21. Use after free vulnerability in audio component can be exploited to execute arbitrary code.
22. Out of bounds read and write vulnerability in V8 can be exploited to cause denial of service and obtain sensitive information.

Original advisories

• Changelog for Opera 68

• Stable Channel Update for Desktop

Exploitation

Public exploits exist for this vulnerability.

Related products

• Opera

CVE list

• CVE-2020-6437
  warning
• CVE-2020-6433
  warning
• CVE-2020-6446
  high
• CVE-2020-6431
  warning
• CVE-2020-6455
  critical
• CVE-2020-6439
  critical
• CVE-2020-6430
  critical
• CVE-2020-6448
  critical
• CVE-2020-6435
  warning
• CVE-2020-6432
  warning
• CVE-2020-6454
  critical
• CVE-2020-6444
  high
• CVE-2020-6443
  critical
• CVE-2020-6456
  high
• CVE-2020-6438
  warning
• CVE-2020-6440
  warning
• CVE-2020-6441
  warning
• CVE-2020-6447
  critical
• CVE-2020-6434
  critical
• CVE-2020-6445
  high
• CVE-2020-6436
  critical
• CVE-2020-6442
  warning
• CVE-2020-6423
  critical
• CVE-2020-6419
  critical

Read more

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