KLA12182 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. A use after free vulnerability in V8 can be exploited to cause denial of service or execute arbitrary code.
2. A use after free vulnerability in Aura can be exploited to cause denial of service or execute arbitrary code.
3. A heap buffer overflow vulnerability in TabStrip can be exploited to cause denial of service.
4. An out of bounds read vulnerability in IPC can be exploited to cause denial of service or obtain sensitive information.
5. A use after free vulnerability in screen capture component can be exploited to cause denial of service or execute arbitrary code.

Original advisories

Changelog for Opera 75

Stable Channel Update for Desktop

Related products

Opera

CVE list

CVE-2021-21197 critical

CVE-2021-21195 critical

CVE-2021-21194 critical

CVE-2021-21199 critical

CVE-2021-21198 high

CVE-2021-21196 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.

Affected Products

• Opera earlier than 75.0.3969.171