Vulnerability identifier: #VU74831

Vulnerability risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-29541

CWE-ID: CWE-254

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 bypass implemented security restrictions.

The vulnerability exists due to improper handling of filenames ending with .desktop. A remote attacker can trick the victim into downloading a malicious file and execute it on the system.

The vulnerability affects Firefox on Linux only.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 100.0 - 111.0.1

Firefox ESR: 102.0 - 102.9.0

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External links
http://www.mozilla.org/en-US/security/advisories/mfsa2023-13/
http://www.mozilla.org/en-US/security/advisories/mfsa2023-14/

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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.