CVE-2021-32575 Improper network isolation in Hashicorp Nomad

What is CVE-2021-32575?

CVE-2021-32575 is a medium-severity vulnerability in n/a, published on 17 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

HashiCorp Nomad and Nomad Enterprise up to version 1.0.4 bridge networking mode allows ARP spoofing from other bridged tasks on the same node. Fixed in 0.12.12, 1.0.5, and 1.1.0 RC1.

Which versions are affected by CVE-2021-32575?

5 open source packages ship an affected version, including github.com/hashicorp/nomad. It affects 1 product.

Products include Hashicorp Nomad.

How do I fix CVE-2021-32575?

Upgrade github.com/hashicorp/nomad to a fixed version for your release line: 0.12.12 or 1.0.5.

Is CVE-2021-32575 being exploited?

There is no known exploitation of CVE-2021-32575 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2023-1782 Nomad Unauthenticated Client Agent HTTP Request Privilege Escalation Critical 10.0
• CVE-2022-30324 Privilege escalation in Hashicorp Nomad Critical 9.8
• CVE-2020-7956 Improper Certificate Validation in HashiCorp Nomad Critical 9.8
• CVE-2019-12618 Hashicorp Nomad Access Control Issues Critical 9.8
• CVE-2020-27195 Use After Free in HashiCorp Nomad Critical 9.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-vf6q-9f2f-mwhv, GO-2022-0709, UBUNTU-CVE-2021-32575.