Vulnerability DatabaseCVE-2020-25645
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CVE-2020-25645
Published:October 13, 2020
Updated:July 21, 2026
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.
Related Resources (11)
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-25645
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
https://security.netapp.com/advisory/ntap-20201103-0004/
http://packetstormsecurity.com/files/161229/Kernel-Live-Patch-Security-Notice-LSN-0074-1.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html
https://www.debian.org/security/2020/dsa-4774
https://access.redhat.com/security/cve/CVE-2020-25645
https://bugzilla.redhat.com/show_bug.cgi?id=1883988
https://security-tracker.debian.org/tracker/CVE-2020-25645
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Cleartext Transmission of Sensitive Information
CWE-319
EPSS
Base Score:
2.43