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Debian Security Bug TrackerDEBIANCVE:CVE-2021-4221

HistoryDec 22, 2022 - 8:15 p.m.

CVE-2021-4221

2022-12-2220:15:12

Debian Security Bug Tracker

security-tracker.debian.org

cve-2021-4221

domain name

rtl characters

rendering issue

user confusion

spoofing attacks

firefox for android

vulnerability

feburary 2022

firefox < 92

unix

CVSS3

4.3

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

EPSS

0.001

Percentile

37.2%

JSON

If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing attacks. <br>This bug only affects Firefox for Android. Other operating systems are unaffected.<br>Note: Due to a clerical error this advisory was not included in the original announcement, and was added in Feburary 2022. This vulnerability affects Firefox < 92.

OSVersionArchitecturePackageVersionFilename
Debian999allfirefox< 130.0.1-1firefox_130.0.1-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	999	all	firefox	< 130.0.1-1	firefox_130.0.1-1_all.deb

CVSS3

4.3

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

EPSS

0.001

Percentile

37.2%

JSON

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