KLA12183
Multiple vulnerabilities in Opera

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

Below is a complete list of vulnerabilities:

1. A use after free vulnerability in Blink can be exploited to cause denial of service or execute arbitrary code.
2. A validation of untrusted input vulnerability in V8 for x86_64 can be exploited to bypass security restrictions.

The following public exploits exists for this vulnerability:

https://github.com/security-dbg/CVE-2021-21220

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

Opera earlier than 75.0.3969.218

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