CVE-2021-3910— NUL character in ROA causes OctoRPKI to crash
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I. Basic Information for CVE-2021-3910
Vulnerability Information
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Vulnerability Title
NUL character in ROA causes OctoRPKI to crash
Source: NVD (National Vulnerability Database)
Vulnerability Description
OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\0) character).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/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 输入验证错误漏洞
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 存在输入验证错误漏洞，该漏洞源于 OctoRPKI 在遇到返回无效 ROA（只是一个编码的NUL( ) 字符）的存储库时崩溃。
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-2021-3910
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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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-2021-3909 | 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 |
| CVE-2021-3911 | 4.2 MEDIUM | Misconfigured IP address field in ROA leads to OctoRPKI crash |
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-2021-3911
Misconfigured IP address field in ROA leads to OctoRPKI cras - 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-2021-3910
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