Vulnerability CVE-2020-25645
Published: 2020-10-13

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.

Type:

CWE-319

 (Cleartext Transmission of Sensitive Information)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Linux -> Linux kernel 

 References:
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html
https://bugzilla.redhat.com/show_bug.cgi?id=1883988
https://www.debian.org/security/2020/dsa-4774
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