CVE-2020-7218 Allocation of Resources Without Limits or Throttling in HashiCorp Nomad

What is CVE-2020-7218?

CVE-2020-7218 is a high-severity denial of service vulnerability in n/a, published on 31 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

HashiCorp Nomad and Nonad Enterprise up to 0.10.2 HTTP/RPC services allowed unbounded resource usage, and were susceptible to unauthenticated denial of service. Fixed in 0.10.3.

Weakness: CWE-770

Which versions are affected by CVE-2020-7218?

3 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-2020-7218?

Upgrade github.com/hashicorp/nomad to 0.10.3 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-7218 being exploited?

There is no known exploitation of CVE-2020-7218 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-h43v-26r7-7j4c, GO-2022-0840, UBUNTU-CVE-2020-7218.