KLA12295
Multiple vulnerabilities in Opera

Updated: 09/23/2021
Detect date
?
09/21/2021
Severity
?
High
Description

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

Below is a complete list of vulnerabilities:

  1. Type confusion vulnerability in Blink layout can be exploited to cause denial of service.
  2. Stack buffer overflow vulnerability in ANGLE can be exploited to cause denial of service or execute arbitrary code.
  3. Use after free vulnerability in Indexed DB API can be exploited to cause denial of service or execute arbitrary code.
  4. Implementation vulnerability in Blink can be exploited to cause denial of service.
  5. Out of bounds write vulnerability in V8 can be exploited to cause denial of service or execute arbitrary code.
  6. Use after free vulnerability in Selection API can be exploited to cause denial of service or execute arbitrary code.
  7. Use after free vulnerability in Permissions can be exploited to cause denial of service or execute arbitrary code.
  8. Out of bounds memory access vulnerability in ANGLE can be exploited to cause denial of service, execute arbitrary code or obtain sensitive information.
Affected products

Opera earlier than 79.0.4143.50

Solution

Update to the latest version
Download Opera

Original advisories

Changelog for Opera 79
Stable Channel Update for Desktop

Impacts
?
ACE 
[?]

OSI 
[?]

DoS 
[?]
Related products
Opera
CVE-IDS
?
CVE-2021-306280.0Unknown
CVE-2021-306330.0Unknown
CVE-2021-306300.0Unknown
CVE-2021-306320.0Unknown
CVE-2021-306290.0Unknown
CVE-2021-306270.0Unknown
CVE-2021-306260.0Unknown
CVE-2021-306250.0Unknown
CVE-2021-306310.0Unknown
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