GHSA-c8xp-8mf3-62h9

Source

https://github.com/advisories/GHSA-c8xp-8mf3-62h9

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-c8xp-8mf3-62h9/GHSA-c8xp-8mf3-62h9.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-c8xp-8mf3-62h9

Aliases

Published

2021-09-07T23:02:18Z

Modified

2023-11-08T04:06:18.884882Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

OctoRPKI lacks contextual out-of-bounds check when validating RPKI ROA maxLength values

Details

Any CA issuer in the RPKI can trick OctoRPKI prior to https://github.com/cloudflare/cfrpki/commit/a8db4e009ef217484598ba1fd1c595b54e0f6422 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate.

Impact

An attacker can use this to disable RPKI Origin Validation in a victim network (for example AS 13335 - Cloudflare) prior to launching a BGP hijack which during normal operations would be rejected as "RPKI invalid". Additionally, in certain deployments RTR session flapping in and of itself also could cause BGP routing churn, causing availability issues.

Patches

https://github.com/cloudflare/cfrpki/commit/a8db4e009ef217484598ba1fd1c595b54e0f6422

https://github.com/cloudflare/cfrpki/releases/tag/v1.3.0

For more information

If you have any questions or comments about this advisory: * Email us at security@cloudflare.com

Database specific

{
    "nvd_published_at": "2021-09-09T14:15:00Z",
    "github_reviewed_at": "2021-09-03T21:40:39Z",
    "severity": "HIGH",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-295",
        "CWE-787"
    ]
}

References

Affected packages

Go / github.com/cloudflare/cfrpki

Package

Name: github.com/cloudflare/cfrpki; View open source insights on deps.dev
Purl: pkg:golang/github.com/cloudflare/cfrpki

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.0