ubuntu-cve-2022-28737
Vulnerability from osv_ubuntu
Published
2023-07-20 01:15
Modified
2025-10-24 04:53
Summary
Details

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.

Severity
6.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "shim",
            "binary_version": "13-0ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "shim",
        "purl": "pkg:deb/ubuntu/shim@13-0ubuntu2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4-0ubuntu4",
        "0.8-0ubuntu2",
        "0.9+1474479173.6c180c6-1ubuntu1",
        "13-0ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "shim",
            "binary_version": "15.4-0ubuntu7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "shim",
        "purl": "pkg:deb/ubuntu/shim@15.4-0ubuntu7?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.8-0ubuntu2",
        "0.9+1474479173.6c180c6-1ubuntu1",
        "13-0ubuntu2",
        "15+1533136590.3beb971-0ubuntu1",
        "15+1552672080.a4a1fbe-0ubuntu2",
        "15.4-0ubuntu7"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "shim",
            "binary_version": "15.7-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "shim",
        "purl": "pkg:deb/ubuntu/shim@15.7-0ubuntu1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9+1474479173.6c180c6-1ubuntu1",
        "13-0ubuntu2",
        "15+1533136590.3beb971-0ubuntu1",
        "15+1552672080.a4a1fbe-0ubuntu2",
        "15.4-0ubuntu7",
        "15.4-0ubuntu9",
        "15.7-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "shim",
            "binary_version": "15.7-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "shim",
        "purl": "pkg:deb/ubuntu/shim@15.7-0ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "15.7-0ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "15+1533136590.3beb971-0ubuntu1",
        "15+1552672080.a4a1fbe-0ubuntu1",
        "15+1552672080.a4a1fbe-0ubuntu2",
        "15.4-0ubuntu7",
        "15.4-0ubuntu9"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "shim",
            "binary_version": "15.7-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "shim",
        "purl": "pkg:deb/ubuntu/shim@15.7-0ubuntu1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "15.7-0ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "15.4-0ubuntu9"
      ]
    }
  ],
  "aliases": [],
  "details": "There\u0027s 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.",
  "id": "UBUNTU-CVE-2022-28737",
  "modified": "2025-10-24T04:53:38Z",
  "published": "2023-07-20T01:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-28737"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6355-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-28737"
    }
  ],
  "related": [
    "USN-6355-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-28737"
  ]
}



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