GHSA-QCJ7-G2J5-G7R3

Vulnerability from github – Published: 2018-10-17 16:24 – Updated: 2025-09-02 20:27
VLAI?
Summary
In Bouncy Castle JCE Provider ECDSA does not fully validate ASN.1 encoding of signature on verification
Details

In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of 'invisible' data into a signed structure.

Severity ?
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.bouncycastle:bcprov-jdk14"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.56"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.bouncycastle:bcprov-jdk15"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.56"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.bouncycastle:bcprov-jdk15on"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.56"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-1000342"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:51:36Z",
    "nvd_published_at": "2018-06-04T13:29:00Z",
    "severity": "HIGH"
  },
  "details": "In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of \u0027invisible\u0027 data into a signed structure.",
  "id": "GHSA-qcj7-g2j5-g7r3",
  "modified": "2025-09-02T20:27:34Z",
  "published": "2018-10-17T16:24:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-1000342"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-java/commit/843c2e60f67d71faf81d236f448ebbe56c62c647#diff-25c3c78db788365f36839b3f2d3016b9"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2669"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2927"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/bcgit/bc-java"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20181127-0004"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3727-1"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "In Bouncy Castle JCE Provider ECDSA does not fully validate ASN.1 encoding of signature on verification"
}


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