KLA12324 Multiple vulnerabilities in Opera

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

Below is a complete list of vulnerabilities:

1. An use after free vulnerability in V8 can be exploited to cause denial of service or execute arbitrary code.
2. An information leak vulnerability in core component can be exploited to obtain sensitive information.
3. An use after free vulnerability in Safe Browsing can be exploited to cause denial of service or execute arbitrary code.

Original advisories

Changelog for Opera 80

Stable Channel Update for Desktop

Exploitation

Public exploits exist for this vulnerability.

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Opera

CVE list

CVE-2021-37975 critical

CVE-2021-37974 critical

CVE-2021-37976 high

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.

Affected Products

• Opera earlier than 80.0.4170.40