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kasperskyKaspersky LabKLA61043
HistorySep 29, 2023 - 12:00 a.m.

KLA61043 Multiple vulnerabilities in Microsoft Browser

2023-09-2900:00:00
Kaspersky Lab
threats.kaspersky.com
47
microsoft browser
arbitrary code execution
denial of service
edge (chromium-based)
public exploits exist
install necessary updates
cve-2023-1999
cve-2023-5186
cve-2023-5217
ace

CVSS3

8.8

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

AI Score

9.8

Confidence

High

EPSS

0.248

Percentile

96.7%

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

Below is a complete list of vulnerabilities:

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

Original advisories

CVE-2023-1999

CVE-2023-5186

CVE-2023-5217

CVE-2023-5187

Exploitation

Public exploits exist for this vulnerability.

Related products

Microsoft-Edge

CVE list

CVE-2023-1999 critical

CVE-2023-5217 critical

CVE-2023-5187 critical

CVE-2023-5186 critical

KB list

Solution

Install necessary updates from the Settings and more menu, that are listed in your About Microsoft Edge page (Microsoft Edge About page usually can be accessed from the Help and feedback option)

Microsoft Edge update settings

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

  • Microsoft Edge (Chromium-based)

CVSS3

8.8

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

AI Score

9.8

Confidence

High

EPSS

0.248

Percentile

96.7%