Skip to content
Heist/ feed
Back to feed
HighFix available

openafs — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2018-16949

An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several data types used as RPC input variables were implemented as unbounded array types, limited only by the inherent 32-bit length field to 4 GB. An unauthenticated attacker could send, or claim to send, large input values and consume server resources waiting for those inputs, denying service to other valid connections.

Products
openafs
Affected versions
Not specified
Fixed versions
1.8.2-1
CVEs
CVE-2018-16949
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 00:36 UTC · Revision 1

Source evidence

DEBIAN-CVE-2018-16949

core-osv · Original source

Published 12 Sept 2018, 01:29 UTC

An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several data types used as RPC input variables were implemented as unbounded array types, limited only by the inherent 32-bit length field to 4 GB. An unauthenticated attacker could send, or claim to send, large input values and consume server resources waiting for those inputs, denying service to other valid connections.

osv:DEBIAN-CVE-2018-16949

openafs

Fixed versions: 1.8.2-1

openafs

Fixed versions: 1.8.2-1

Complete source record
{
  "id": "a42fa8239abf54757749b4d4ff0380b03802b94467497c12d616c4fbb80e8a0f",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-16949",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2018-16949",
    "summary": "An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several data types used as RPC input variables were implemented as unbounded array types, limited only by the inherent 32-bit length field to 4 GB. An unauthenticated attacker could send, or claim to send, large input values and consume server resources waiting for those inputs, denying service to other valid connections.",
    "evidence": "osv:DEBIAN-CVE-2018-16949",
    "products": [
      {
        "name": {
          "value": "openafs",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.8.2-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openafs",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.8.2-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2018-16949",
      "aliases": [
        "DEBIAN-CVE-2018-16949"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.8.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openafs",
            "purl": "pkg:deb/debian/openafs?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-16949.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.8.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openafs",
            "purl": "pkg:deb/debian/openafs?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-16949.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:03:28.722754773Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-16949"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2018-16949"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-16949",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 421633,
  "published_at": "2018-09-12T01:29:00.623+00:00"
}