gsd-2022-28736
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2's memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved.
Aliases
Aliases
CVE-2022-28736


To clipboard 

{
  "GSD": {
    "alias": "CVE-2022-28736",
    "id": "GSD-2022-28736",
    "references": [
      "https://security.archlinux.org/CVE-2022-28736",
      "https://linux.oracle.com/cve/CVE-2022-28736.html",
      "https://access.redhat.com/errata/RHSA-2022:5095",
      "https://access.redhat.com/errata/RHSA-2022:5096",
      "https://access.redhat.com/errata/RHSA-2022:5098",
      "https://access.redhat.com/errata/RHSA-2022:5099",
      "https://access.redhat.com/errata/RHSA-2022:5100",
      "https://www.suse.com/security/cve/CVE-2022-28736.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-28736"
      ],
      "details": "There\u0027s a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn\u0027t support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2\u0027s memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved.",
      "id": "GSD-2022-28736",
      "modified": "2023-12-13T01:19:34.171553Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@ubuntu.com",
        "ID": "CVE-2022-28736",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "GNU GRUB",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "0",
                          "version_value": "2.06-3"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "GNU Project"
            }
          ]
        }
      },
      "credits": [
        {
          "lang": "en",
          "value": "Chris Coulson"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "There\u0027s a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn\u0027t support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2\u0027s memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.openwall.com/lists/oss-security/2022/06/07/5",
            "refsource": "MISC",
            "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
          },
          {
            "name": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736",
            "refsource": "MISC",
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20230825-0002/",
            "refsource": "MISC",
            "url": "https://security.netapp.com/advisory/ntap-20230825-0002/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.06-3",
                "versionStartIncluding": "2.00",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@ubuntu.com",
          "ID": "CVE-2022-28736"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "There\u0027s a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn\u0027t support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2\u0027s memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-416"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.openwall.com/lists/oss-security/2022/06/07/5",
              "refsource": "MISC",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://www.openwall.com/lists/oss-security/2022/06/07/5"
            },
            {
              "name": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20230825-0002/",
              "refsource": "MISC",
              "tags": [],
              "url": "https://security.netapp.com/advisory/ntap-20230825-0002/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-08-25T23:15Z",
      "publishedDate": "2023-07-20T01:15Z"
    }
  }
}


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