Security advisory

{
  "id": "814bc653df326a4b3b7e106e9cee68e407e2b69bf0203059ff49df4423c160d6",
  "url": "https://osv.dev/vulnerability/CVE-2021-34193",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-34193",
    "summary": "Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.",
    "evidence": "osv:CVE-2021-34193",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-34193",
      "aliases": [
        "CVE-2021-34193"
      ],
      "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": [
            {
              "repo": "https://github.com/opensc/opensc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c902e1992195e00ada12d71beb1029287cd72037"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.22.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.22.0-rc2",
            "0.22.0-rc1",
            "0.21.0",
            "0.21.0-rc2",
            "0.21.0-rc1",
            "0.20.0",
            "0.20.0-rc4",
            "0.20.0-rc3",
            "0.20.0-rc2",
            "0.20.0-rc1",
            "0.19.0",
            "0.19.0-rc1",
            "0.18.0",
            "0.18.0-rc2",
            "0.18.0-rc1",
            "0.17.0",
            "0.17.0-rc2",
            "0.17.0-rc1",
            "0.16.0",
            "v0.16.0-pre1",
            "0.15.0",
            "0.14.0",
            "0.14.0rtm",
            "0.14.0rc2",
            "0.13.0",
            "0.13.0rc1",
            "0.13.0pre1",
            "v0.12.2",
            "0.12.2",
            "0.12.2-rc1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34193.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:41.524584272Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28768",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30800",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31448",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-34193",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435168,
  "published_at": "2023-08-22T19:16:20.913+00:00"
}