This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-3761 →

DEBIAN-CVE-2021-3761

Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate. An atta...

Original description

The description as published by the source.

Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate. An attacker can use this to disable RPKI Origin Validation in a victim network (for example AS 13335 - Cloudflare) prior to launching a BGP hijack which during normal operations would be rejected as "RPKI invalid". Additionally, in certain deployments RTR session flapping in and of itself also could cause BGP routing churn, causing availability issues.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 cfrpki

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.0-1"}]}]

References

advisory security-tracker.debian.org