CVE-2021-3910
NUL character in ROA causes OctoRPKI to crash
HIGH
7.5
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
Using octorpki by Cloudflare?
Get instant alerts when new vulnerabilities affect octorpki - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 1%
Description
OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\0) character).
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 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-5mxh-2qfv-4g7jVendor 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
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-20
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card