A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2417-1 linux-4.19 security update
Debian DLA Debian DLA DLA-2494-1 linux security update
Debian DSA Debian DSA DSA-4774-1 linux security update
EUVD EUVD EUVD-2020-18310 A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.
Ubuntu USN Ubuntu USN USN-4657-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4658-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4660-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4912-1 Linux kernel (OEM) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00104}

epss

{'score': 0.00108}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T15:40:36.536Z

Reserved: 2020-09-16T00:00:00

Link: CVE-2020-25645

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-10-13T20:15:12.570

Modified: 2024-11-21T05:18:19.557

Link: CVE-2020-25645

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-09-16T00:00:00Z

Links: CVE-2020-25645 - Bugzilla

cve-icon OpenCVE Enrichment

No data.