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kasperskyKaspersky LabKLA49378
HistoryJun 06, 2023 - 12:00 a.m.

KLA49378 Multiple vulnerabilities in Mozilla Firefox

2023-06-0600:00:00
Kaspersky Lab
threats.kaspersky.com
42
mozilla firefox
vulnerabilities
malicious users
arbitrary code
denial of service
sensitive information
security restrictions
update
severity high
ace
cve-2023-34416
cve-2023-34414
cve-2023-34415
cve-2023-34417
mfsa2023-20

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.6

Confidence

Low

EPSS

0.006

Percentile

77.9%

Multiple vulnerabilities were found in Mozilla Firefox. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause denial of service, obtain sensitive information, bypass security restrictions.

Below is a complete list of vulnerabilities:

  1. Memory safety vulnerability can be exploited to cause denial of service or execute arbitrary code.
  2. Click-jacking vulnerability can be exploited to cause denial of service, execute arbitrary code or obtain sensitive information.
  3. Site-isolation bypass vulnerability can be to bypass security restrictions.
  4. Memory safety vulnerability can be exploited to execute arbitrary code.

Original advisories

MFSA2023-20

Related products

Mozilla-Firefox

CVE list

CVE-2023-34416 critical

CVE-2023-34414 warning

CVE-2023-34415 high

CVE-2023-34417 critical

Solution

Update to the latest version

Download Firefox

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.

  • OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

  • DoS

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

  • SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

Affected Products

  • Mozilla Firefox earlier than 114.0

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.6

Confidence

Low

EPSS

0.006

Percentile

77.9%