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ubuntucveUbuntu.comUB:CVE-2021-23957
HistoryFeb 26, 2021 - 12:00 a.m.

CVE-2021-23957

2021-02-2600:00:00
ubuntu.com
ubuntu.com
14
android
intent
url scheme
firefox
vulnerability
iframe sandbox

CVSS2

4.3

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

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

34.9%

JSON

Navigations through the Android-specific intent URL scheme could have
been misused to escape iframe sandbox. Note: This issue only affected
Firefox for Android. Other operating systems are unaffected. This
vulnerability affects Firefox < 85.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
avital Android only

Related

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Security Vulnerabilities fixed in Firefox 85 — Mozilla
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CVSS2

4.3

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

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

34.9%

JSON
Related for UB:CVE-2021-23957
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