CVE-2021-3911— Misconfigured IP address field in ROA leads to OctoRPKI crash
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I. Basic Information for CVE-2021-3911
Vulnerability Information
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Vulnerability Title
Misconfigured IP address field in ROA leads to OctoRPKI crash
Source: NVD (National Vulnerability Database)
Vulnerability Description
If the ROA that a repository returns contains too many bits for the IP address then OctoRPKI will crash.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cloudflare OctoRPKI 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cloudflare OctoRPKI是美国cloudflare（Cloudflare）的Cloudflare平台的RPKI工具箱。 Cloudflare OctoRPKI 存在安全漏洞，该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cloudflare | octorpki | unspecified ~ 1.4.0 | - |
II. Public POCs for CVE-2021-3911
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cloudflare · 2021-11-11 · 6 CVEs total
| CVE-2021-3907 | 7.4 HIGH | Arbitrary filepath traversal via URI injection |
| CVE-2021-3908 | 5.9 MEDIUM | Infinite certificate chain depth results in OctoRPKI running forever |
| CVE-2021-3910 | 4.4 MEDIUM | NUL character in ROA causes OctoRPKI to crash |
| CVE-2021-3909 | 4.4 MEDIUM | Infinite open connection causes OctoRPKI to hang forever |
| CVE-2021-3912 | 4.2 MEDIUM | OctoRPKI crashes when processing GZIP bomb returned via malicious repository |
IV. Related Vulnerabilities
Same product: octorpki
- CVE-2021-3978
Improper Preservation of Permissions in github.com/cloudflar - CVE-2022-3616
OctoRPKI crash when maximum iterations number is reached - CVE-2021-3912
OctoRPKI crashes when processing GZIP bomb returned via mali - CVE-2021-3910
NUL character in ROA causes OctoRPKI to crash - CVE-2021-3909
Infinite open connection causes OctoRPKI to hang forever
Same vendor: Cloudflare
- CVE-2026-2836
Cache poisoning via insecure-by-default cache key - CVE-2026-2835
HTTP Request Smuggling via HTTP/1.0 and Transfer-Encoding Mi - CVE-2026-2833
HTTP Request Smuggling via Premature Upgrade - CVE-2026-1229
Incorrect calculation in CIRCL secp384r1 CombinedMult - CVE-2026-0933
OS Command Injection in `wrangler pages deploy`
Same weakness: CWE-20
V. Comments for CVE-2021-3911
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