Uncontrolled Recursion Affecting rpki-client package, versions <7.5-1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.1% (44th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN12-RPKICLIENT-2327253
  • published28 Dec 2021
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2021-43172  (opens in a new tab)
CWE-674  (opens in a new tab)

How to fix?

Upgrade Debian:12 rpki-client to version 7.5-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rpki-client package and not the rpki-client package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.

CVSS Scores

version 3.1