KLA12183
Multiple vulnerabilities in Opera

Updated: 03/19/2023
Detect date
?
04/20/2021
Severity
?
High
Description

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.
Exploitation

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.

Affected products

Opera earlier than 75.0.3969.218

Solution

Update to the latest version
Download Opera

Original advisories

Changelog for Opera 75
Stable Channel Update for Desktop

Impacts
?
ACE 
[?]

DoS 
[?]

SB 
[?]
Related products
Opera
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