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kasperskyKaspersky LabKLA62517
HistoryDec 19, 2023 - 12:00 a.m.

KLA62517 Multiple vulnerabilities in Mozilla Firefox

2023-12-1900:00:00
Kaspersky Lab
threats.kaspersky.com
14
mozilla firefox
multiple vulnerabilities
security restrictions bypass
sensitive information
arbitrary code execution
user interface spoofing
denial of service
software update
ace
mfsa2023-56
cve-2023-6871
cve-2023-6857
cve-2023-6872
cve-2023-6860
cve-2023-6864
cve-2023-6859
cve-2023-6865
cve-2023-6866
cve-2023-6867
cve-2023-6858
cve-2023-6861
cve-2023-6869
cve-2023-6856
cve-2023-6870
cve-2023-6868
cve-2023-6135
cve-2023-6873
cve-2023-6863
update
ace
mfsa2023-56

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

9.1 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.4%

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

Below is a complete list of vulnerabilities:

  1. Security vulnerability in protocol handler can be exploited to bypass security restrictions.
  2. Security vulnerability in Symlinks can be exploited to bypass security restrictions.
  3. Information disclosure vulnerability can be exploited to obtain sensitive information.
  4. Security vulnerability in VideoBridge can be exploited to bypass security restrictions.
  5. Memory safety vulnerability can be exploited to execute arbitrary code.
  6. Use after free vulnerability in PR_GetIdentitiesLayer can be exploited to execute arbitrary code.
  7. Information disclosure vulnerability in EncryptingOutputStreams can be exploited to obtain sensitive information.
  8. Security vulnerability in TypedArrayscan be exploited to bypass security restrictions.
  9. Clickjacking permission prompts vulnerability in popup transition can be exploited remotely to spoof user interface.
  10. Heap buffer overflow vulnerability in nsTextFragment can be exploited to cause denial of service.
  11. Heap buffer overflow vulnerability in nsWindow::PickerOpen(void) can be exploited to cause denial of service.
  12. Security vulnerability in dialog element can be exploited to bypass security restrictions.
  13. Heap buffer overflow vulnerability in WebGL ACE can be exploited to execute arbitrary code.
  14. Security UI vulnerability in Android Toast notifications (only for Android) can be exploited to spoof user interface.
  15. Security UI vulnerability in WebPush requests can be exploited to spoof user interface.
  16. Information disclosure vulnerability in NSS can be exploited to obtain sensitive information.
  17. Security vulnerability in ShutdownObserver can be exploited to bypass security restrictions.

Original advisories

MFSA2023-56

Related products

Mozilla-Firefox

CVE list

CVE-2023-6871 warning

CVE-2023-6857 warning

CVE-2023-6872 warning

CVE-2023-6860 warning

CVE-2023-6864 warning

CVE-2023-6859 warning

CVE-2023-6865 warning

CVE-2023-6866 warning

CVE-2023-6867 warning

CVE-2023-6858 warning

CVE-2023-6861 warning

CVE-2023-6869 warning

CVE-2023-6856 warning

CVE-2023-6870 warning

CVE-2023-6868 warning

CVE-2023-6135 warning

CVE-2023-6873 warning

CVE-2023-6863 warning

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.

  • 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 121

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

9.1 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.4%