CVE-2021-23973
Mozilla: MediaError message property could have leaked information about cross-origin resources
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Cuando se intenta cargar un recurso de origen cruzado en un contexto de audio y video, puede haber resultado un error de decodificación, y el contenido de ese error puede haber divulgado información sobre el recurso. Esta vulnerabilidad afecta a Firefox versiones anteriores a 86, Thunderbird versiones anteriores a 78,8 y Firefox ESR versiones anteriores a 78,8
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-01-13 CVE Reserved
- 2021-02-25 CVE Published
- 2024-07-16 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-209: Generation of Error Message Containing Sensitive Information
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202104-09 | 2022-05-27 | |
| https://security.gentoo.org/glsa/202104-10 | 2022-05-27 | |
| https://www.debian.org/security/2021/dsa-4866 | 2022-05-27 | |
| https://www.mozilla.org/security/advisories/mfsa2021-07 | 2022-05-27 | |
| https://www.mozilla.org/security/advisories/mfsa2021-08 | 2022-05-27 | |
| https://www.mozilla.org/security/advisories/mfsa2021-09 | 2022-05-27 | |
| https://access.redhat.com/security/cve/CVE-2021-23973 | 2021-02-24 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1932111 | 2021-02-24 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | < 86.0 Search vendor "Mozilla" for product "Firefox" and version " < 86.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | < 78.8 Search vendor "Mozilla" for product "Firefox Esr" and version " < 78.8" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | < 78.8 Search vendor "Mozilla" for product "Thunderbird" and version " < 78.8" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||