Vulnerability identifier: #VU50888
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-200
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Mozilla Firefox
Client/Desktop applications /
Web browsers
Firefox ESR
Client/Desktop applications /
Web browsers
Vendor: Mozilla
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output via a decoding error, when trying to load a cross-origin resource in an audio/video context. A remote attacker can gain access to information about the resource.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 6.0 - 85.0.2
Firefox ESR: 60.0 - 60.9.0, 68.0 - 68.12.0, 78.0 - 78.7.1
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2021-07/
http://www.mozilla.org/en-US/security/advisories/mfsa2021-08/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.