#VU64766 Security features bypass in Mozilla Firefox


Published: 2022-06-29

Vulnerability identifier: #VU64766

Vulnerability risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-34475

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to improper handling of SVG <use> tags that referenced a same-origin document. A remote attacker can bypass the HTML Sanitizer API by referencing a same-origin JavaScript file containing the script to be executed.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 92.0 - 101.0.1


External links
http://www.mozilla.org/en-US/security/advisories/mfsa2022-24/


Q & A

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.


Latest bulletins with this vulnerability