# CVE-2021-3911: GO-2022-0252 - Panic on misconfigured IP address in github.com/cloudflare/cfrpki

Source: https://junglewise.ai/threats/cve-2021-3911-misconfigured-ip-address-field-in-roa-leads-to-octorpki-crash  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-07-15  
License: CC BY 4.0 with a link back

CVE-2021-3911 · Severity: low · CVSS 3.1 · Published 2022-07-15

Panic on misconfigured IP address in github.com/cloudflare/cfrpki

Technologies: [github.com/cloudflare/cfrpki (Go)](https://junglewise.ai/threats/technologies/github-com-cloudflare-cfrpki). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2021-3911 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2021-3911 being exploited in the wild.

**How severe is CVE-2021-3911?** Low severity, with a CVSS score of 3.1, published 15 July 2022.

**Which products and versions are affected?** github.com/cloudflare/cfrpki (Go) SEMVER:introduced=0,fixed=1.4.0.

**Is there a fix for CVE-2021-3911?** Yes. github.com/cloudflare/cfrpki (Go): upgrade to 1.4.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2021-3911?** Check whether you run github.com/cloudflare/cfrpki (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/cloudflare/cfrpki (Go): upgrade to 1.4.0 or later

  ```sh
  go get github.com/cloudflare/cfrpki@v1.4.0
  ```


## Affected products

- github.com/cloudflare/cfrpki (Go) SEMVER:introduced=0,fixed=1.4.0

## Identifiers

- CVE-2021-3911
- GHSA-w6ww-fmfx-2x22
- GO-2022-0252

## Related threats

- [GO-2022-1089 - OctoRPKI crashes when max iterations is reached in github.com/cloudflare/cfrpki](https://junglewise.ai/threats/cve-2022-3616-octorpki-crashes-when-max-iterations-is-reached)
- [GO-2022-0580 - Improper Preservation of Permissions in github.com/cloudflare/cfrpki/cmd/octorpki in github.com/cloudflare/cfrpki](https://junglewise.ai/threats/cve-2021-3978-improper-preservation-of-permissions-in-github-com-cloudflare)
- [GO-2022-0496 - Path traversal mitigation bypass in OctoRPKI in github.com/cloudflare/cfrpki](https://junglewise.ai/threats/go-2022-0496-path-traversal-mitigation-bypass-in-octorpki-in-github-com-48e4a08f)
- [GO-2022-0250 - Infinite open connection causes OctoRPKI to hang forever in github.com/cloudflare/cfrpki](https://junglewise.ai/threats/cve-2021-3909-infinite-open-connection-causes-octorpki-to-hang-forever)
- [GO-2022-0249 - Infinite certificate chain depth results in OctoRPKI running forever in github.com/cloudflare/cfrpki](https://junglewise.ai/threats/cve-2021-3908-infinite-certificate-chain-depth-results-in-octorpki-running)