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kasperskyKaspersky LabKLA12471
HistoryMar 08, 2022 - 12:00 a.m.

KLA12471 Multiple vulnerabilities in Mozilla Firefox

2022-03-0800:00:00
Kaspersky Lab
threats.kaspersky.com
50
mozilla firefox
multiple vulnerabilities
spoofing
arbitrary code execution
denial of service
security bypass

CVSS3

9.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.4

Confidence

High

EPSS

0.004

Percentile

74.8%

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

Below is a complete list of vulnerabilities:

  1. Security UI vulnerability in fullscreen mode can be exploited to spoof user interface,
  2. Memory safety vulnerability can be exploited to execute arbitrary code.
  3. Use after free vulnerability in thread shutdown can be exploited to cause denial of service.
  4. Security vulnerability in Autofill tooltips can be exploited to bypass security restrictions.
  5. Security vulnerability in iframe sandboxed with allow-popups can be exploited to execute arbitrary code.
  6. Use after free vulnerability in text reflows can be exploited via special crafted SVG object to cause denial of service.
  7. Security vulnerability in verifying add-on signatures can be exploited to bypass security restrictions.

Original advisories

MFSA2022-10

Related products

Mozilla-Firefox

CVE list

CVE-2022-26383 warning

CVE-2022-0843 critical

CVE-2022-26385 high

CVE-2022-26382 warning

CVE-2022-26384 critical

CVE-2022-26381 critical

CVE-2022-26387 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.

  • 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.

  • XSS/CSS

Cross site scripting. Exploitation of vulnerabilities with this impact can lead to partial interception of information transmitted between user and site.

  • SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

  • Mozilla Firefox earlier than 98

CVSS3

9.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.4

Confidence

High

EPSS

0.004

Percentile

74.8%