SB2020101372 - MitM attack in GENEVE tunnel implementation in Linux kernel

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Main Vulnerability Database SB2020101372

SB2020101372 - MitM attack in GENEVE tunnel implementation in Linux kernel

Published: October 13, 2020 Updated: March 17, 2021

Security Bulletin ID SB2020101372
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Cleartext transmission of sensitive information (CVE-ID: CVE-2020-25645)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to traffic passed between two Geneve endpoints with configured IPsec can be unencrypted for the specific UDP port. A remote attacker with ability to intercept network traffic can gain access to sensitive data.


Remediation

Install update from vendor's website.

References