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CVE-2021-23973

Date: February 25, 2021

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.

Severity Score

Related Resources (14)

https://security.gentoo.org/glsa/202104-09
https://www.mozilla.org/security/advisories/mfsa2021-08/
https://www.mozilla.org/security/advisories/mfsa2021-07/
https://www.mozilla.org/security/advisories/mfsa2021-09/
https://security-tracker.debian.org/tracker/CVE-2021-23973
https://nvd.nist.gov/vuln/detail/CVE-2021-23973
https://security.gentoo.org/glsa/202104-10
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-23973
https://access.redhat.com/security/cve/CVE-2021-23973
https://security.alpinelinux.org/vuln/CVE-2021-23973
https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html
https://bugzilla.mozilla.org/show_bug.cgi?id=1690976
https://www.debian.org/security/2021/dsa-4866
https://www.mend.io/vulnerability-database/CVE-2021-23973

Severity Score

Weakness Type (CWE)

Generation of Error Message Containing Sensitive Information

CWE-209

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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