KLA11731 Multiple vulnerabilities in Opera

Multiple vulnerabilities were found in Opera. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service.

Below is a complete list of vulnerabilities:

1. PE vulnerability in extensions components can be exploited to gain privileges.
2. Type confusion vulnerability in V8 component can be exploited to cause denial of service.
3. Heap buffer overflow vulnerability in PDFium component can be exploited to cause denial of service.

Original advisories

Changelog for Opera 53

Stable Channel Update for Desktop

Related products

Opera

CVE list

CVE-2018-6122 unknown

CVE-2018-6120 high

CVE-2018-6121 high

Solution

Update to the latest version

Download Opera

Impacts

• 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 53.0.2907.57