libical security update

{
  "id": "8cf8dc8927b4a2c2a798a4b28583e460b4650ccd6f644e366570f18fab7dfffd",
  "url": "https://osv.dev/vulnerability/OESA-2026-4379",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libical security update",
    "summary": "Libical is an open source implementation of the IETF's iCalendar calendaring and scheduling protocols (RFC 2445, 2446, and 2447). It parses iCal components and provides a C API for manipulating the component properties, parameters, and subcomponents. Security Fix(es): libical 4.0.6 contains an incompatible function pointer in icalparameter_string_to_kind(). When parsing iCalendar data containing a parameterized property, the function passes icalparameter_compare_kind_map() to bsearch() through an incompatible comparator function pointer type. bsearch() invokes the callback through the mismatched type, resulting in undefined behavior and process termination, leading to denial of service.(CVE-2026-88383)",
    "evidence": "osv:OESA-2026-4379",
    "products": [
      {
        "name": {
          "value": "libical",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.0.17-3.oe2403sp4",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "OESA-2026-4379",
      "aliases": [
        "OESA-2026-4379"
      ],
      "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": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.0.17-3.oe2403sp4"
                }
              ]
            }
          ],
          "package": {
            "name": "libical",
            "purl": "pkg:rpm/openEuler/libical&distro=openEuler-24.03-LTS-SP4",
            "ecosystem": "openEuler:24.03-LTS-SP4"
          },
          "database_specific": {
            "source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4379.json"
          },
          "ecosystem_specific": {
            "src": [
              "libical-3.0.17-3.oe2403sp4.src.rpm"
            ],
            "x86_64": [
              "libical-3.0.17-3.oe2403sp4.x86_64.rpm",
              "libical-debuginfo-3.0.17-3.oe2403sp4.x86_64.rpm",
              "libical-debugsource-3.0.17-3.oe2403sp4.x86_64.rpm",
              "libical-devel-3.0.17-3.oe2403sp4.x86_64.rpm"
            ],
            "aarch64": [
              "libical-3.0.17-3.oe2403sp4.aarch64.rpm",
              "libical-debuginfo-3.0.17-3.oe2403sp4.aarch64.rpm",
              "libical-debugsource-3.0.17-3.oe2403sp4.aarch64.rpm",
              "libical-devel-3.0.17-3.oe2403sp4.aarch64.rpm"
            ]
          }
        }
      ],
      "modified": "2026-10-16T12:15:13.592151416Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-88383"
      ],
      "references": [
        "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4379",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-88383"
      ],
      "provider_metadata": {
        "severity": "High"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-88383",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 340837,
  "published_at": "2026-10-16T11:59:58+00:00"
}