https://seclists.org/oss-sec/2024/q1/118: [ADVISORY] CVE-2023-3966: Open vSwitch: Invalid memory access in Geneve with HW offload.

Published Feb 8, 2024
·
Updated

Affected Software

1 affected component
Open vSwitch Open vSwitch>=2.12
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Frequently Asked Questions

1

What is the severity of CVE-2023-3966?

CVE-2023-3966 is considered critical due to its potential to cause denial of service through invalid memory accesses.

2

How do I fix CVE-2023-3966?

To fix CVE-2023-3966, update Open vSwitch to the latest version that addresses the vulnerability.

3

What systems are affected by CVE-2023-3966?

CVE-2023-3966 affects multiple versions of Open vSwitch with flow hardware offload enabled.

4

Can CVE-2023-3966 be exploited remotely?

Yes, CVE-2023-3966 can be exploited by sending crafted Geneve packets to the vulnerable Open vSwitch instance.

5

What are the prerequisites for exploiting CVE-2023-3966?

Exploitation of CVE-2023-3966 requires that Open vSwitch has hardware offload with Linux TC flower enabled.

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https://seclists.org/oss-sec/2024/q1/118 - [ADVISORY] CVE-2023-3966: Open vSwitch: Invalid memory access in Geneve with HW offload. - SecAlerts