KLA11967 Multiple vulnerabilites in Opera

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

Below is a complete list of vulnerabilities:

1. Security UI vulnerability in permissions can be exploited to spoof user interface.
2. Policy enforcement vulnerability in intent handling component can be exploited to bypass security restrictions and gain privileges.
3. Policy enforcement vulnerability in extensions can be exploited to bypass security restrictions.
4. Out of bounds read vulnerability in storage component can be exploited to cause denial of service.
5. Security UI vulnerability in Omnibox can be exploited to spoof user interface.
6. Policy enforcement vulnerability in autofill component can be exploited to bypass security restrictions and gain privileges.
7. Data validation vulnerability in media component can be exploited to security bypass restrictions.
8. Use after free vulnerability in presentation API can be exploited to execute arbitrary code or cause denial of service.
9. Out of bounds write vulnerability in V8 can be exploited to cause denial of service.
10. Policy enforcement vulnerability in Blink can be exploited to bypass security restrictions and gain privileges.
11. Implementation vulnerability in Content Security Policy can be exploited to bypass security restrictions.
12. Policy enforcement vulnerability in iOS can be exploited to bypass security restrictions.
13. Policy enforcement in media component can be exploited to bypass security restrictions and gain privileges.
14. Validation of untrusted input vulnerability in command line handling can be exploited to bypass security restrictions.
15. Policy enforcement vulnerability in serial component can be exploited to bypass security restrictions.
16. Side-channel information leakage vulnerability in WebRTC can be exploited to obtain sensitive information.
17. Integer overflow vulnerability in WebUSB can be exploited to cause denial of service.

Original advisories

Changelog for Opera 71

Stable Channel Update for Desktop

Stable Channel Update for Desktop

Related products

Opera

CVE list

CVE-2020-6561 high

CVE-2020-6559 critical

CVE-2020-6566 high

CVE-2020-6558 high

CVE-2020-6562 high

CVE-2020-6560 high

CVE-2020-6565 high

CVE-2020-6564 high

CVE-2020-6563 high

CVE-2020-6570 warning

CVE-2020-6571 warning

CVE-2020-6569 high

CVE-2020-6568 high

CVE-2020-6567 high

CVE-2020-15961 critical

CVE-2020-15960 critical

CVE-2020-15962 critical

CVE-2020-15965 critical

CVE-2020-15964 critical

CVE-2020-15966 warning

CVE-2020-15963 critical

Solution

Update to the latest version

Download Opera

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

• SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

• Opera earlier than 71.0.3770.198