KLA12596 Multiple vulnerabilities in Opera

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

Below is a complete list of vulnerabilities:

1. Use after free vulnerability in Cast UI and Toolbar can be exploited to cause denial of service or execute arbitrary code.
2. Use after free vulnerability in PDF can be exploited to cause denial of service or execute arbitrary code.
3. Validation of untrusted input vulnerability in File can be exploited to cause denial of service.
4. Use after free vulnerability in Guest View can be exploited to cause denial of service or execute arbitrary code.
5. Use after free vulnerability in Service Worker API can be exploited to cause denial of service or execute arbitrary code.
6. Use after free vulnerability in Views can be exploited to cause denial of service or execute arbitrary code.

Original advisories

Changelog for 89

Stable Channel Update for Desktop

Exploitation

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

Related products

Opera

CVE list

CVE-2022-2163 critical

CVE-2022-2478 critical

CVE-2022-2479 warning

CVE-2022-2477 critical

CVE-2022-2480 critical

CVE-2022-2481 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.

• 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.

Affected Products

• Opera earlier than 89.0.4447.71