KLA12334
Multiple vulnerabilities in Opera

Updated: 11/02/2021
Detect date
?
10/21/2021
Severity
?
Warning
Description

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

Below is a complete list of vulnerabilities:

  1. Use after free in Garbage Collection can be exploited to cause denial of service or execute arbitrary code.
  2. Heap buffer overflow vulnerability in Blink can be exploited to cause denial of service.
  3. Heap buffer overflow vulnerability in WebRTC can be exploited to cause denial of service.
  4. Inappropriate implementation in Sandbox can be exploited to cause denial of service.
Affected products

Opera earlier than 80.0.4170.63

Solution

Update to the latest version
Download Opera

Original advisories

Changelog for Opera 80
Stable Channel Update for Desktop

Impacts
?
ACE 
[?]

DoS 
[?]
Related products
Opera
CVE-IDS
?
CVE-2021-379780.0Unknown
CVE-2021-379790.0Unknown
CVE-2021-379770.0Unknown
CVE-2021-379800.0Unknown
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