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kasperskyKaspersky LabKLA61313
HistoryOct 03, 2023 - 12:00 a.m.

KLA61313 Multiple vulnerabilities in Opera

2023-10-0300:00:00
Kaspersky Lab
threats.kaspersky.com
10
opera
vulnerabilities
exploitation
update
ace
cve-2023-5217
cve-2023-5187
cve-2023-5186

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

10 High

AI Score

Confidence

High

0.248 Low

EPSS

Percentile

96.7%

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

Below is a complete list of vulnerabilities:

  1. Use after free vulnerability in Extensions can be exploited to cause denial of service or execute arbitrary code.
  2. Heap buffer overflow vulnerability in vp8 encoding can be exploited to cause denial of service.
  3. Use after free vulnerability in Passwords can be exploited to cause denial of service or execute arbitrary code.

Original advisories

Introducing Opera 103

Stable Channel Update for Desktop

Exploitation

Public exploits exist for this vulnerability.

Related products

Opera

CVE list

CVE-2023-5217 critical

CVE-2023-5187 critical

CVE-2023-5186 critical

Solution

Update to the latest version

Download Opera

Impacts

  • ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

  • DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

Affected Products

  • Opera earlier than 103.0.4928.16

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

10 High

AI Score

Confidence

High

0.248 Low

EPSS

Percentile

96.7%