Vulnerability Details

Mozilla Firefox Security Update (mfsa_2021-13_2021-16) - Windows

Published: 2021-04-20 10:46:42
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C

Summary:
The host is installed with Mozilla Firefox and is prone to multiple vulnerabilities.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
Multiple flaws exist due to, - An out of bound write due to lazy initialization. - An use-after-free in Responsive Design Mode. - Content rendered outside of webpage viewport. - An use-after-free when freeing fonts from cache. - Secure Lock icon could have been spoofed. - Blob URLs may have been granted additional privileges. - 'requestPointerLock' function could be applied to a tab different from the visible tab. - Testing code could have enabled session history manipulations by a compromised content process. - Arbitrary FTP command execution on FTP servers using an encoded URL. - Port blocking could be bypassed. - Memory safety bugs.

Impact:
Successful exploitation will allow attackers to run arbitrary code, conduct phishing, escalate privileges and bypass security restrictions.

Affected Versions:
Mozilla Firefox version before 88 on Windows.

Recommendations:
Upgrade to Mozilla Firefox version 88 or later. Please see the references for more information.

Solution Type:
Vendor Patch

Detection Type:
Windows Registry

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2021-23994
https://nvd.nist.gov/vuln/detail/CVE-2021-23995
https://nvd.nist.gov/vuln/detail/CVE-2021-23996
https://nvd.nist.gov/vuln/detail/CVE-2021-23997
https://nvd.nist.gov/vuln/detail/CVE-2021-23998
https://nvd.nist.gov/vuln/detail/CVE-2021-23999
https://nvd.nist.gov/vuln/detail/CVE-2021-24000
https://nvd.nist.gov/vuln/detail/CVE-2021-24001
https://nvd.nist.gov/vuln/detail/CVE-2021-24002
https://nvd.nist.gov/vuln/detail/CVE-2021-29946
https://nvd.nist.gov/vuln/detail/CVE-2021-29947

References:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/

Severity
High
CVSS Score
10.0
Published
2021-04-20
Modified
2021-05-26
Category
General

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