CVE-2021-3908 describes a denial-of-service vulnerability in OctoRPKI, affecting Cloudflare and Debian implementations. The flaw stems from OctoRPKI's failure to limit certificate chain depth, allowing a malicious Certificate Authority to create an infinite chain, leading to endless tree traversal. This unauthenticated attack has low complexity and can result in high availability impact, earning a CVSS score of 7.5 (High). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.3.0CPE matchmatch criteria | cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | ||
< 1.4.0CPE match | cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.