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kasperskyKaspersky LabKLA49379
HistoryJun 06, 2023 - 12:00 a.m.

KLA49379 Multiple vulnerabilities in Mozilla Firefox ESR

2023-06-0600:00:00
Kaspersky Lab
threats.kaspersky.com
17
mozilla firefox esr
vulnerabilities
arbitrary code execution
sensitive information
denial of service
update
mfsa2023-19
cve-2023-34416
cve-2023-34414
ace

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

9.4

Confidence

Low

EPSS

0.006

Percentile

77.9%

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

Below is a complete list of vulnerabilities:

  1. Click-jacking vulnerability can be exploited to cause denial of service, execute arbitrary code or obtain sensitive information.
  2. Memory safety vulnerability can be exploited to cause denial of service or execute arbitrary code.

Original advisories

MFSA2023-19

Related products

Mozilla-Firefox-ESR

CVE list

CVE-2023-34416 critical

CVE-2023-34414 warning

Solution

Update to the latest version

Download Firefox ESR

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 FirefoxΒ ESR earlier thanΒ 102.12

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

9.4

Confidence

Low

EPSS

0.006

Percentile

77.9%