KLA61309 Multiple vulnerabilities in Opera

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

Below is a complete list of vulnerabilities:

1. Type confusion vulnerability in V8 can be exploited to cause denial of service.
2. Use after free vulnerability in WebRTC can be exploited to cause denial of service or execute arbitrary code.
3. Use after free vulnerability in Cast can be exploited to cause denial of service or execute arbitrary code.
4. Out of bounds read vulnerability in WebGL can be exploited to cause denial of service.
5. Implementation vulnerability in Extensions can be exploited to cause denial of service.
6. Out of bounds memory access vulnerability in ANGLE can be exploited to cause denial of service.
7. Heap buffer overflow vulnerability in Visuals can be exploited to cause denial of service.
8. Data validation vulnerability in Extensions can be exploited to cause denial of service.
9. Use after free vulnerability in Blink Task Scheduling can be exploited to cause denial of service or execute arbitrary code.

Original advisories

Stable Channel Update for Desktop

Opera 101.0.4843.43 Stable update

Exploitation

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

Related products

Opera

CVE list

CVE-2023-4071 critical

CVE-2023-4072 critical

CVE-2023-4077 critical

CVE-2023-4074 critical

CVE-2023-4075 critical

CVE-2023-4076 critical

CVE-2023-4069 critical

CVE-2023-4078 critical

CVE-2023-4068 critical

CVE-2023-4073 critical

CVE-2023-4070 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 101.0.4843.43