Cleartext Transmission of Sensitive Information Affecting kernel-devel package, versions <0:4.14.181-140.257.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.18% (57th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELDEVEL-1680265
  • published27 Sept 2021
  • disclosed9 Sept 2020

Introduced: 9 Sep 2020

CVE-2020-1749  (opens in a new tab)
CWE-319  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-devel to version 0:4.14.181-140.257.amzn2 or higher.
This issue was patched in ALAS2-2020-1431.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel package and not the kernel-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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.

CVSS Scores

version 3.1