CVE-2021-23973

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1690976	Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-08/	Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-09/	Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/	Release Notes Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html	Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4866	Third Party Advisory
https://security.gentoo.org/glsa/202104-09	Third Party Advisory
https://security.gentoo.org/glsa/202104-10	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Information

Published : 2021-02-25 18:15

Updated : 2022-05-27 11:04

NVD link : CVE-2021-23973

Mitre link : CVE-2021-23973

JSON object : View

CWE

CWE-209

Generation of Error Message Containing Sensitive Information

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Products Affected

mozilla

firefox
firefox_esr
thunderbird

debian

debian_linux

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