iccDEV: HBO in icAnsiToUtf8()

{
  "id": "3aa8a695e5f1b427f927a167d1fb6f66c485d4efae7c898bdef38b50c9c5322e",
  "url": "https://osv.dev/vulnerability/CVE-2026-34556",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "iccDEV: HBO in icAnsiToUtf8()",
    "summary": "iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, there is a heap-buffer-overflow (HBO) in icAnsiToUtf8() in the XML conversion path. The issue is triggered by a crafted ICC profile which causes icAnsiToUtf8(std::string&, char const*) to treat an input buffer as a C-string and call operations that rely on strlen()/null-termination. AddressSanitizer reports an out-of-bounds READ of size 115 past a 114-byte heap allocation, with the failure observed while running the iccToXml tool. This issue has been patched in version 2.3.1.6.",
    "evidence": "osv:CVE-2026-34556",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-34556",
      "aliases": [
        "CVE-2026-34556",
        "GHSA-p9wm-xfv4-43qg"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/internationalcolorconsortium/iccdev",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e280b0ad4b5574594c6a987bfa3ceb4f196f4b34"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.3.1.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:color:iccdev:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.3.1.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "wasm-v2.3.5",
            "v2.3.1.5",
            "v2.3.1.4",
            "v2.3.1.3",
            "v2.3.1.2",
            "v2.3.1.1",
            "v2.3.1",
            "v2.2.6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34556.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:27.974740599Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34556.json",
        "https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-p9wm-xfv4-43qg",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-34556",
        "https://github.com/InternationalColorConsortium/iccDEV/issues/734",
        "https://github.com/InternationalColorConsortium/iccDEV/pull/740"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-125"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34556.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-34556",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 494774,
  "published_at": "2026-03-31T22:22:47.259+00:00"
}