osv-2025-845
Vulnerability from osv_ossfuzz
Published
2025-10-19 00:19
Modified
2025-10-19 00:19
Summary
Global-buffer-overflow in icaltime_day_of_year
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=452914686

Crash type: Global-buffer-overflow READ 4
Crash state:
icaltime_day_of_year
expand_year_days
__iterator_set_start
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "bc05c9e130364e4026d0bcc4a431b125c4be543b:ac90fe970a051ed580f1d97854e73d250e5d92ee",
        "introduced_range": "e3360bc71d7cd6358732252bf9361b30984dd376:0790346e493c30a21a11c070ec87df0dd6654783"
      },
      "ecosystem_specific": {
        "severity": null
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "libical",
        "purl": "pkg:generic/libical"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "a5977add5b862817f9f136fef6b1c6001c6710de"
            },
            {
              "fixed": "ac90fe970a051ed580f1d97854e73d250e5d92ee"
            }
          ],
          "repo": "https://github.com/libical/libical.git",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=452914686\n\n```\nCrash type: Global-buffer-overflow READ 4\nCrash state:\nicaltime_day_of_year\nexpand_year_days\n__iterator_set_start\n```\n",
  "id": "OSV-2025-845",
  "modified": "2025-10-19T00:19:40.541746Z",
  "published": "2025-10-19T00:19:40.541109Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=452914686"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "Global-buffer-overflow in icaltime_day_of_year"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.