Fedora 41 update for openvpn



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-2704
CWE-ID CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

openvpn
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Reachable assertion

EUVDB-ID: #VU106925

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-2704

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion in server mode using TLS-crypt-v2. A remote attacker can perform a denial of service attack against the VPN server by replaying network packets in the early handshake phase.

Successful exploitation of the vulnerability requires a valid tls-crypt-v2 client key or network observation of a handshake with a valid tls-crypt-v2 client key.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 41

openvpn: before 2.6.14-1.fc41

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2025-277b5e1d96


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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