CVE-2023-0845 Consul Server Panic when Ingress and API Gateways Configured with Peering

What is CVE-2023-0845?

CVE-2023-0845 is a medium-severity vulnerability in HashiCorp Consul, published on 9 Mar 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Consul and Consul Enterprise allowed an authenticated user with service:write permissions to trigger a workflow that causes Consul server and client agents to crash under certain circumstances. This vulnerability was fixed in Consul 1.14.5.

Weakness: CWE-476

Which versions are affected by CVE-2023-0845?

4 open source packages ship an affected version, including github.com/hashicorp/consul and consul. It affects 1 product.

Products include Hashicorp Consul.

How do I fix CVE-2023-0845?

Upgrade github.com/hashicorp/consul to 1.14.5 or later.

Is CVE-2023-0845 being exploited?

There is no known exploitation of CVE-2023-0845 in the wild and no public exploit code.

Other vulnerabilities in HashiCorp Consul

• CVE-2021-41805 Privilege escalation in n/a High 8.8
• CVE-2021-37219 HashiCorp Consul Privilege Escalation Vulnerability High 8.8
• CVE-2023-2816 Consul Envoy Extension Downsteam Proxy Configuration By Upstream Service Owner High 8.7
• CVE-2024-10006 Consul L7 Intentions Vulnerable To Headers Bypass High 8.3
• CVE-2024-10005 Consul L7 Intentions Vulnerable To URL Path Bypass High 8.1

Sources

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

Also known as BIT-consul-2023-0845, GHSA-wj6x-hcc2-f32j, GO-2023-1639, UBUNTU-CVE-2023-0845.