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cfrpki — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2021-43174

NLnet Labs Routinator versions 0.9.0 up to and including 0.10.1, support the gzip transfer encoding when querying RRDP repositories. This encoding can be used by an RRDP repository to cause an out-of-memory crash in these versions of Routinator. RRDP uses XML which allows arbitrary amounts of white space in the encoded data. The gzip scheme compresses such white space extremely well, leading to very small compressed files that become huge when being decompressed for further processing, big enough that Routinator runs out of memory when parsing input data waiting for the next XML element.

Products
cfrpki
Affected versions
Not specified
Fixed versions
1.4.0-1
CVEs
CVE-2021-43174
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 01:06 UTC · Revision 1

Source evidence

DEBIAN-CVE-2021-43174

core-osv · Original source

Published 9 Nov 2021, 17:15 UTC

NLnet Labs Routinator versions 0.9.0 up to and including 0.10.1, support the gzip transfer encoding when querying RRDP repositories. This encoding can be used by an RRDP repository to cause an out-of-memory crash in these versions of Routinator. RRDP uses XML which allows arbitrary amounts of white space in the encoded data. The gzip scheme compresses such white space extremely well, leading to very small compressed files that become huge when being decompressed for further processing, big enough that Routinator runs out of memory when parsing input data waiting for the next XML element.

osv:DEBIAN-CVE-2021-43174

cfrpki

Fixed versions: 1.4.0-1

Complete source record
{
  "id": "b8e35b760c28af0ee4b0a91006b0348aa5d24ba3c311034bb2f9042b4f63bc06",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-43174",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2021-43174",
    "summary": "NLnet Labs Routinator versions 0.9.0 up to and including 0.10.1, support the gzip transfer encoding when querying RRDP repositories. This encoding can be used by an RRDP repository to cause an out-of-memory crash in these versions of Routinator. RRDP uses XML which allows arbitrary amounts of white space in the encoded data. The gzip scheme compresses such white space extremely well, leading to very small compressed files that become huge when being decompressed for further processing, big enough that Routinator runs out of memory when parsing input data waiting for the next XML element.",
    "evidence": "osv:DEBIAN-CVE-2021-43174",
    "products": [
      {
        "name": {
          "value": "cfrpki",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.4.0-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2021-43174",
      "aliases": [
        "DEBIAN-CVE-2021-43174"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.4.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "cfrpki",
            "purl": "pkg:deb/debian/cfrpki?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43174.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:04:15.932377811Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-43174"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2021-43174"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2021-43174",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 423057,
  "published_at": "2021-11-09T17:15:07.783+00:00"
}