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Ubuntu 20.04: USN-6514-1 critical: openvswitch network threat

ubuntu
Calendar Grey November 27, 2023
Dist Ubuntu Esm H88
Secure your Ubuntu environment: Critical Open vSwitch vulnerability could expose sensitive data throughout the network.
Open vSwitch could be made to expose sensitive information over the network.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) Summary: Open vSwitch could be made to expose sensitive information over the network. Software Description: - openvswitch: Ethernet virtual switch Details: It was discovered that Open vSwitch did not correctly handle OpenFlow rules for ICMPv6 Neighbour Advertisement packets. A local attacker could possibly use this issue to redirect traffic to arbitrary IP addresses.

Topics%20covered

Topics Covered

security advisory critical Ubuntu information exposure network threat openvswitch

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: openvswitch-common 2.13.8-0ubuntu1.3 Ubuntu 18.04 LTS (Available with Ubuntu Pro): openvswitch-common 2.9.8-0ubuntu0.18.04.5+esm1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6514-1

CVE-2023-5366

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6514-1

Topics%20covered

Topics Covered

security advisory critical Ubuntu information exposure network threat openvswitch

Package Information

https://launchpad.net/ubuntu/+source/openvswitch/2.13.8-0ubuntu1.3

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