KLA12188
Multiple vulnerabilities in Opera

Updated: 06/22/2021
Detect date
?
05/26/2021
Severity
?
High
Description

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

Below is a complete list of vulnerabilities:

  1. A use after free vulnerability in File API can be exploited to cause denial of service or execute arbitrary code.
  2. A heap buffer overflow vulnerability in History can be exploited to cause denial of service.
  3. A security UI vulnerability in Web App Installs can be exploiteed to spoof user interface.
  4. A use after free vulnerability in Autofill can be exploited to cause denial of service or execute arbitrary code.
  5. An out of bounds write vulnerability in Tab Strip can be exploited to cause denial of service.
  6. A race condition vulnerability in Aura can be exploited to bypass security restrictions.
  7. A use after free vulnerability in Payments can be exploited to cause denial of service or execute arbitrary code.
  8. A type confusion vulnerability in V8 can be exploited to cause denial of service.
  9. A heap buffer overflow vulnerability in Media Feeds can be exploited to cause denial of service.
  10. An implementation vulnerability in Offline can be exploited to cause denial of service.
  11. A use after free vulnerability in Tab Strip can be exploited to cause denial of service or execute arbitrary code.
  12. A use after free vulnerability in Notifications can be exploited to cause denial of service or execute arbitrary code.
  13. An out of bounds read vulnerability in Tab Groups can be exploited to cause denial of service.
  14. A heap buffer overflow vulnerability in Reader Mode can be exploited to cause denial of service.
Affected products

Opera earlier than 76.0.4017.154

Solution

Update to the latest version
Download Opera

Original advisories

Stable Channel Update for Desktop
Changelog for Opera 76

Impacts
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ACE 
[?]

DoS 
[?]

SB 
[?]

SUI 
[?]
Related products
Opera
CVE-IDS
?
KB list

5003695
5003636
5003661
5003667
5003694

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