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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2017-15698

When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. Users not using OCSP checks are not affected by this vulnerability.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-15698
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 07:15 UTC · Revision 1

Source evidence

CVE-2017-15698

core-osv · Original source

Published 31 Jan 2018, 14:29 UTC

When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. Users not using OCSP checks are not affected by this vulnerability.

osv:CVE-2017-15698
Complete source record
{
  "id": "ab391ed64aad92ad8262fcd4b9e9949d8b959bf038b25d1a900d8cf23e29f92c",
  "url": "https://osv.dev/vulnerability/CVE-2017-15698",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-15698",
    "summary": "When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. Users not using OCSP checks are not affected by this vulnerability.",
    "evidence": "osv:CVE-2017-15698",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-15698",
      "aliases": [
        "CVE-2017-15698"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/tomcat-native",
              "type": "GIT",
              "events": [
                {
                  "introduced": "71090a48b31816e3d5a0646be5c3e7b2b533bf07"
                },
                {
                  "last_affected": "b78d639697912862696e13c2ee17480766421e29"
                },
                {
                  "introduced": "7ad1dc6624569d88278ed12fd593ad78b6ec4930"
                },
                {
                  "last_affected": "0ac5ee98131352c53069b071774eef4cd1275e1c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.1.23"
                      },
                      {
                        "last_affected": "1.1.34"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.0"
                      },
                      {
                        "last_affected": "1.2.14"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-15698.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:50.831654463Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/6eb0a53e5827d97db1a05c736d01101fec21202a5b8fc77bb0eaaed8%40%3Cannounce.tomcat.apache.org%3E",
        "https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3E",
        "https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3E",
        "https://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220%40%3Cdev.tomcat.apache.org%3E",
        "https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d%40%3Cdev.tomcat.apache.org%3E",
        "https://access.redhat.com/errata/RHSA-2018:0465",
        "https://access.redhat.com/errata/RHSA-2018:0466",
        "https://lists.debian.org/debian-lts-announce/2018/02/msg00011.html",
        "https://www.debian.org/security/2018/dsa-4118"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-15698",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437343,
  "published_at": "2018-01-31T14:29:00.467+00:00"
}