Heap-buffer-overflow in i18n::phonenumbers::UnicodeText::const_iterator::operator--

{
  "id": "14eae571566ccc0d61273271d1c202898d3f3421ef29f9672492183b2c77d25c",
  "url": "https://osv.dev/vulnerability/OSV-2025-298",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap-buffer-overflow in i18n::phonenumbers::UnicodeText::const_iterator::operator--",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=413161357 ``` Crash type: Heap-buffer-overflow READ 1 Crash state: i18n::phonenumbers::UnicodeText::const_iterator::operator-- i18n::phonenumbers::UnicodeString::tempSubString i18n::phonenumbers::AsYouTypeFormatter::AttemptToExtractIdd ```",
    "evidence": "osv:OSV-2025-298",
    "products": [
      {
        "name": {
          "value": "libphonenumber",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "v9.0.16",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.15",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.14",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.13",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.12",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.11",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.10",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.9",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.0.4",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2025-298",
      "aliases": [
        "OSV-2025-298"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/google/libphonenumber",
              "type": "GIT",
              "events": [
                {
                  "introduced": "78d634f33ae4966e2283ab2d59a300a768b6e174"
                },
                {
                  "fixed": "669751dd889a2daf135580caf5cb54f41fa0bc2d"
                },
                {
                  "fixed": "6167d42b7ea67eedca61468a7fb9da1523703054"
                }
              ]
            }
          ],
          "package": {
            "name": "libphonenumber",
            "purl": "pkg:generic/libphonenumber",
            "ecosystem": "OSS-Fuzz"
          },
          "versions": [
            "v9.0.16",
            "v9.0.15",
            "v9.0.14",
            "v9.0.13",
            "v9.0.12",
            "v9.0.11",
            "v9.0.10",
            "v9.0.9",
            "v9.0.8",
            "v9.0.7",
            "v9.0.6",
            "v9.0.5",
            "v9.0.4"
          ],
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libphonenumber/OSV-2025-298.yaml",
            "fixed_range": "af3da6cc6839c9efd02b36c2b6d6cd70c0d88223:669751dd889a2daf135580caf5cb54f41fa0bc2d",
            "introduced_range": "cbe787d7031a6136680c3060aa28e606670146a9:fb1a52618624eea94b3604e7bc1f1f41c0cd548a"
          },
          "ecosystem_specific": {
            "severity": "MEDIUM"
          }
        }
      ],
      "modified": "2026-10-20T17:27:22.667883206Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=413161357"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 390117,
  "published_at": "2025-04-26T00:02:46.771719+00:00"
}