GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2022-28737 (GCVE-0-2022-28737)

Vulnerability from cvelistv5 – Published: 2023-07-20 00:26 – Updated: 2024-10-22 13:17
VLAI
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:15 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Red Hat Bootloader Team shim Affected: 0 , < 15.6 (semver)
guessed Create a notification for this product.
redhat shim Affected: 0 , < 15.6 (semver)
    cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2022-06-13 00:00
Credits
Chris Coulson
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T06:03:52.700Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
          },
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "shim",
            "vendor": "redhat",
            "versions": [
              {
                "lessThan": "15.6",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-28737",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:15:51.434701Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:17:50.789Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "packageName": "shim",
          "platforms": [
            "Linux"
          ],
          "product": "shim",
          "repo": "https://github.com/rhboot/shim/",
          "vendor": "Red Hat Bootloader Team",
          "versions": [
            {
              "lessThan": "15.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Chris Coulson"
        }
      ],
      "datePublic": "2022-06-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-07-20T15:38:14.142Z",
        "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "shortName": "canonical"
      },
      "references": [
        {
          "tags": [
            "mailing-list"
          ],
          "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737"
        }
      ],
      "title": "There\u0027s a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
    "assignerShortName": "canonical",
    "cveId": "CVE-2022-28737",
    "datePublished": "2023-07-20T00:26:15.627Z",
    "dateReserved": "2022-04-05T21:59:08.761Z",
    "dateUpdated": "2024-10-22T13:17:50.789Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-28737",
      "date": "2026-09-20",
      "epss": "0.00328",
      "percentile": "0.26173"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "0A305DFD-CD50-408F-843E-0234EE1D25DA",
                  "versionEndExcluding": "15.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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": "CVE-2022-28737",
      "lastModified": "2024-11-21T06:57:50.197",
      "metrics": {
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "HIGH",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 0.6,
            "impactScore": 5.9,
            "source": "security@ubuntu.com",
            "type": "Secondary"
          },
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 1.8,
            "impactScore": 5.9,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2023-07-20T01:15:10.473",
      "references": [
        {
          "source": "security@ubuntu.com",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737"
        },
        {
          "source": "security@ubuntu.com",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
        }
      ],
      "sourceIdentifier": "security@ubuntu.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-787"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "packageName": "shim",
                "platforms": [
                  "Linux"
                ],
                "product": "shim",
                "repo": "https://github.com/rhboot/shim/",
                "vendor": "Red Hat Bootloader Team",
                "versions": [
                  {
                    "lessThan": "15.6",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "security@ubuntu.com"
          },
          {
            "affectedData": [
              {
                "cpes": [
                  "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "shim",
                "vendor": "redhat",
                "versions": [
                  {
                    "lessThan": "15.6",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0A305DFD-CD50-408F-843E-0234EE1D25DA",
                    "versionEndExcluding": "15.6",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "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": "CVE-2022-28737",
        "lastModified": "2026-06-17T04:38:56.663",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 0.6,
              "impactScore": 5.9,
              "source": "security@ubuntu.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2022-28737",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:15:51.434701Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2023-07-20T01:15:10.473",
        "references": [
          {
            "source": "security@ubuntu.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737"
          },
          {
            "source": "security@ubuntu.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
          }
        ],
        "sourceIdentifier": "security@ubuntu.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-26T15:34:59+00:00",
      "cve": "CVE-2022-28737",
      "id": "CVE-2022-28737",
      "initial_release_date": "2022-06-07T17:00:00+00:00",
      "product_status:fixed": "26",
      "product_status:known_affected": "5",
      "product_status:known_not_affected": "226",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "shim: Buffer overflow when loading crafted EFI images",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-28737.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-31T01:44:24Z",
      "cve": "CVE-2022-28737",
      "id": "CVE-2022-28737",
      "initial_release_date": "2023-02-15T03:26:29Z",
      "product_status:known_affected": "294",
      "product_status:recommended": "186",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-28737",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-28737.json",
      "version": "64"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-03T06:03:52.700Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "mailing-list",
                  "x_transferred"
                ],
                "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
              },
              {
                "tags": [
                  "issue-tracking",
                  "x_transferred"
                ],
                "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "affected": [
              {
                "cpes": [
                  "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "shim",
                "vendor": "redhat",
                "versions": [
                  {
                    "lessThan": "15.6",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-28737",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-10-22T13:15:51.434701Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-10-22T13:17:06.438Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "packageName": "shim",
              "platforms": [
                "Linux"
              ],
              "product": "shim",
              "repo": "https://github.com/rhboot/shim/",
              "vendor": "Red Hat Bootloader Team",
              "versions": [
                {
                  "lessThan": "15.6",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Chris Coulson"
            }
          ],
          "datePublic": "2022-06-13T00:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "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."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "format": "CVSS"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-07-20T15:38:14.142Z",
            "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
            "shortName": "canonical"
          },
          "references": [
            {
              "tags": [
                "mailing-list"
              ],
              "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
            },
            {
              "tags": [
                "issue-tracking"
              ],
              "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737"
            }
          ],
          "title": "There\u0027s a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "assignerShortName": "canonical",
        "cveId": "CVE-2022-28737",
        "datePublished": "2023-07-20T00:26:15.627Z",
        "dateReserved": "2022-04-05T21:59:08.761Z",
        "dateUpdated": "2024-10-22T13:17:50.789Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.