CVE-2020-25645

HIGH

Linux Kernel < 5.9-rc7 - Cleartext Transmission of Sensitive Information via Geneve Tunnel

Title source: llm
STIX 2.1

Description

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.

References (8)

Core 8
Core References
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1883988
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4774
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20201103-0004/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html

Scores

CVSS v3 7.5
EPSS 0.0039
EPSS Percentile 60.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-319
Status published
Products (13)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
debian/debian_linux 9.0
debian/debian_linux 10.0
linux/linux_kernel 5.9.0 (7 CPE variants)
linux/linux_kernel < 5.9.0
netapp/hci_compute_node_bios
netapp/solidfire_\&_hci_management_node
... and 3 more
Published Oct 13, 2020
Tracked Since Feb 18, 2026