Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1tM3g5LTYyM2ctMzVjNM4AAqmx

Routinator infinite loop vulnerability

NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP repositories of infinite length causing it to never finish a validation run. In RPKI, a CA can choose the RRDP repository it wishes to publish its data in. By continuously generating a new child CA that only consists of another CA using a different RRDP repository, a malicious CA can create a chain of CAs of de-facto infinite length. Routinator prior to version 0.10.2 did not contain a limit on the length of such a chain and will therefore continue to process this chain forever. As a result, the validation run will never finish, leading to Routinator continuing to serve the old data set or, if in the initial validation run directly after starting, never serve any data at all.

Permalink: https://github.com/advisories/GHSA-m3x9-623g-35c4
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1tM3g5LTYyM2ctMzVjNM4AAqmx
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 2 years ago
Updated: 10 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-m3x9-623g-35c4, CVE-2021-43172
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-43172
• https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-43172_CVE-2021-43173_CVE-2021-43174.txt
• https://github.com/NLnetLabs/routinator/pull/665/commits/2f1c47378e3439cb89e084cdad6b759bbc8a72b8
• https://github.com/advisories/GHSA-m3x9-623g-35c4

Repository: https://github.com/NLnetLabs/routinator
Blast Radius: 1.0

Affected Packages