← Back

CVE-2020-1749

nvd nist
Published: Sep 9, 2020Modified: Jun 17, 2026

JSON object

Loading...
7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending the data unencrypted. This would allow anyone in between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.

Affected (3)

Linux
1 product
Linux Kernel
Redhat
2 products
Enterprise Linux
Enterprise Mrg
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Linux Kernel
All versions
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Enterprise Linux
Version 7.0
Enterprise Mrg
Version 2.0

Related CWEs

CWE-319
Cleartext Transmission of Sensitive Information
The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

References (4)

Source: secalert@redhat.com
Issue TrackingPatchThird Party Advisory
Source: secalert@redhat.com
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.