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redhatcveRedhat.comRH:CVE-2021-38506
HistoryNov 03, 2021 - 1:09 a.m.

CVE-2021-38506

2021-11-0301:09:49
redhat.com
access.redhat.com
19

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

6.7 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

51.2%

JSON

The Mozilla Foundation Security Advisory describes this flaw as: Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing.

Related

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Spoofing Attack
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Code injection
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Mozilla Firefox has an unspecified vulnerability (CNVD-2021-101168)
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Ubuntu: Security Advisory (USN-5152-1)
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Update now! Mozilla fixes security vulnerabilities in Firefox 94
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Important: firefox security update
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[ASA-202111-2] firefox: multiple issues
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Important: firefox security update
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firefox security update
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thunderbird security update
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Updated firefox packages fix security vulnerability
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(RHSA-2021:4607) Important: firefox security update
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Security Vulnerabilities fixed in Firefox ESR 91.3 — Mozilla
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4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

6.7 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

51.2%

JSON
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