Security advisory

{
  "id": "43be17f58ddba728860267ec416a704526c4de23732ef90b7a3941ac9bcdd70a",
  "url": "https://osv.dev/vulnerability/CVE-2018-5382",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-5382",
    "summary": "The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type \"BKS-V1\" was introduced in 1.49. It should be noted that the use of \"BKS-V1\" is discouraged by the library authors and should only be used where it is otherwise safe to do so, as in where the use of a 16 bit checksum for the file integrity check is not going to cause a security issue in itself.",
    "evidence": "osv:CVE-2018-5382",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-5382",
      "aliases": [
        "CVE-2018-5382",
        "GHSA-8477-3v39-ggpm"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/bcgit/bc-java",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "4f7f299340043738ff3a269724d4a9ab18e739d2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.49"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "r1rv49"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-5382.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:28.351587621Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2018:2927",
        "https://www.bouncycastle.org/releasenotes.html",
        "https://www.kb.cert.org/vuls/id/306792",
        "https://www.oracle.com/security-alerts/cpuoct2020.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:redhat:satellite:6.4:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:satellite",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "6.4"
                  },
                  {
                    "last_affected": "6.4"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:redhat:satellite_capsule:6.4:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:satellite_capsule",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "6.4"
                  },
                  {
                    "last_affected": "6.4"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-5382",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432030,
  "published_at": "2018-04-16T14:29:01.047+00:00"
}