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Alerts This Week
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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

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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