There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables

{
  "id": "543cd8e36ddcbb67b22802e4f1bbbb310b428eb847b89df45f8a2ccf95fd30b0",
  "url": "https://osv.dev/vulnerability/CVE-2022-28737",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables",
    "summary": "There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.",
    "evidence": "osv:CVE-2022-28737",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-28737",
      "aliases": [
        "CVE-2022-28737"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/rhboot/shim",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "505cdb678b319fcf9a7fdee77c0f091b4147cbe5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "15.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "cpe": "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "15.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "15.6-rc2",
            "15.5",
            "15.5-rc2",
            "15.4",
            "15.3",
            "shim-15.3-rc4",
            "shim-15.3-rc3",
            "shim-15.3-rc2",
            "shim-15.3-rc1",
            "15.2",
            "15",
            "14",
            "13",
            "12",
            "11",
            "0.9",
            "0.8",
            "0.7",
            "0.5",
            "0.4",
            "0.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-28737.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.358153378Z",
      "provider": "osv",
      "references": [
        "https://github.com/rhboot/shim/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/28xxx/CVE-2022-28737.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-28737",
        "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737",
        "https://www.openwall.com/lists/oss-security/2022/06/07/5"
      ],
      "provider_metadata": {
        "cna_assigner": "canonical",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/28xxx/CVE-2022-28737.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-28737",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492112,
  "published_at": "2023-07-20T00:26:15.627+00:00"
}