CVE-2021-3909: medium-severity vulnerability in Cloudflare octorpki
Infinite open connection causes OctoRPKI to hang forever
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.4epss 1.6%
OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever. Specifically, the repository that OctoRPKI sends HTTP requests to will keep the connection open for a day before a response is returned, but does keep drip feeding new bytes to keep the connection alive.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected products
Cloudflare · octorpkiRelated CVEs — Cloudflare octorpki
In the same product, most dangerous first.
CVE-2021-3907HIGHArbitrary filepath traversal via URI injectionEPSS 4.2%CVE-2021-3761HIGHOctoRPKI lacks contextual out-of-bounds check when validating RPKI ROA maxLength valuesEPSS 1.2%CVE-2021-3910MEDIUMNUL character in ROA causes OctoRPKI to crashEPSS 1.2%CVE-2021-3911MEDIUMMisconfigured IP address field in ROA leads to OctoRPKI crashEPSS 0.9%CVE-2021-3912MEDIUMOctoRPKI crashes when processing GZIP bomb returned via malicious repositoryEPSS 0.9%CVE-2021-3908MEDIUMInfinite certificate chain depth results in OctoRPKI running foreverEPSS 0.7%