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kasperskyKaspersky LabKLA12228
HistoryJul 13, 2021 - 12:00 a.m.

KLA12228 Multiple vulnerabilities in Mozilla Firefox

2021-07-1300:00:00
Kaspersky Lab
threats.kaspersky.com
60

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

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

9.4 High

AI Score

Confidence

High

0.008 Low

EPSS

Percentile

82.1%

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

Below is a complete list of vulnerabilities:

  1. A security bypass vulnerability in password autofill on Android can be exploited to bypass security restrictions and obtain sensitive information.
  2. A security bypass vulnerability on Android can be exploited to bypass security restrictions.
  3. A memory safety vulnerability can be exploited to execute arbitrary code.
  4. A use after free vulnerability can be exploited via special crafted webpage to cause denial of service or execute arbitrary code.
  5. An out of bounds write vulnerability in ANGLE can be exploited to cause denial of service or execute arbitrary code.
  6. A security UI vulnerability can be exploited to spoof user interface.
  7. A security bypass vulnerability in network partitioning can be exploited to bypass security restrictions.
  8. A use after free vulnerability in Cairo can be exploited to cause denial of service or execute arbitrary code.

Original advisories

MFSA2021-28

Related products

Mozilla-Firefox

CVE list

CVE-2021-30547 critical

CVE-2021-29976 critical

CVE-2021-29970 critical

CVE-2021-29973 critical

CVE-2021-29971 critical

CVE-2021-29977 critical

CVE-2021-29975 high

CVE-2021-29974 warning

CVE-2021-29972 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.

  • 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 90

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

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

9.4 High

AI Score

Confidence

High

0.008 Low

EPSS

Percentile

82.1%