#VU55267 Security features bypass in Mozilla VPN for Linux - CVE-2021-29978

Vulnerability identifier: #VU55267

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-29978

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla VPN for Linux
Client/Desktop applications / Other client software

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to multiple low security issues in a security audit with an unknown impact and attack vector.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla VPN for Linux: 2.0.0

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2021-31/

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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.