CVE-2021-3911
Misconfigured IP address field in ROA leads to OctoRPKI crash
MEDIUM
6.5
CVSS Score
Published: November 11, 2021 at 09:45 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
2 products affected across 2 vendorsDebian LinuxOctoRPKI
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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.9%
Description
If the ROA that a repository returns contains too many bits for the IP address then OctoRPKI will crash.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.3.0v < 1.4.0
Affected range stops below 1.3.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.4.0, so it looks safe — our inference, not a vendor statement
Debian Linux· Debiandrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/cloudflare/cfrpki/security/advisories/GHSA-w6ww-fmfx-2x22Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2022/dsa-5041CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20CWE-252
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