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ubuntucveUbuntu.comUB:CVE-2021-23982
HistoryMar 24, 2021 - 12:00 a.m.

CVE-2021-23982

2021-03-2400:00:00
ubuntu.com
ubuntu.com
8

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

47.3%

Using techniques that built on the slipstream research, a malicious webpage
could have scanned both an internal network’s hosts as well as services
running on the user’s local machine utilizing WebRTC connections. This
vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird <
78.9.

Bugs

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 87.0+build3-0ubuntu0.18.04.2UNKNOWN
ubuntu20.04noarchfirefox< 87.0+build3-0ubuntu0.20.04.2UNKNOWN
ubuntu20.10noarchfirefox< 87.0+build3-0ubuntu0.20.10.1UNKNOWN
ubuntu21.04noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu24.04noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
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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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

47.3%