KLA12353
Multiple vulnerabilities in Opera

Updated: 11/25/2021
Detect date
?
11/17/2021
Severity
?
High
Description

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

Below is a complete list of vulnerabilities:

  1. Policy enforcement vulnerability in Autofill can be exploited to bypass security restrictions.
  2. Data validation vulnerability in New Tab Page can be exploited to bypass security restrictions.
  3. Use after vulnerability free in Web Transport can be exploited to cause denial of service or execute arbitrary code.
  4. Type confusion vulnerability in V8 can be exploited to cause denial of service.
  5. Implementation vulnerability in V8 can be exploited to cause denial of service.
  6. Use after vulnerability free in Garbage Collections can be exploited to cause denial of service or execute arbitrary code.
  7. Validation of untrusted input vulnerability in Intents can be exploited to bypass security restrictions.
  8. Use after vulnerability free in Sign-In can be exploited to cause denial of service or execute arbitrary code.
Affected products

Opera earlier than 81.0.4196.54

Solution

Update to the latest version
Download Opera

Original advisories

Changelog for Opera 81
Stable Channel Update for Desktop

Impacts
?
ACE 
[?]

DoS 
[?]

SB 
[?]
Related products
Opera
CVE-IDS
?
CVE-2021-379990.0Unknown
CVE-2021-380030.0Unknown
CVE-2021-380000.0Unknown
CVE-2021-380020.0Unknown
CVE-2021-379970.0Unknown
CVE-2021-379980.0Unknown
CVE-2021-380010.0Unknown
CVE-2021-380040.0Unknown
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