ubuntu-cve-2022-28733
Vulnerability from osv_ubuntu
Published
2023-07-20 01:15
Modified
2025-10-24 04:53
Summary
Details

Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "grub-efi-amd64-signed",
            "binary_version": "1.34.24+2.02~beta2-9ubuntu1.21"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "grub2-signed",
        "purl": "pkg:deb/ubuntu/grub2-signed@1.34.24?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.22",
        "1.23",
        "1.24",
        "1.25",
        "1.26",
        "1.27",
        "1.30",
        "1.31",
        "1.32",
        "1.33",
        "1.34",
        "1.34.1",
        "1.34.2",
        "1.34.3",
        "1.34.4",
        "1.34.5",
        "1.34.6",
        "1.34.7",
        "1.34.8",
        "1.34.9",
        "1.34.13",
        "1.34.14",
        "1.34.16",
        "1.34.17",
        "1.34.18",
        "1.34.20",
        "1.34.22",
        "1.34.24"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "grub-efi-amd64-signed",
            "binary_version": "1.167~16.04.6+2.04-1ubuntu44.1.2"
          },
          {
            "binary_name": "grub-efi-arm64-signed",
            "binary_version": "1.167~16.04.6+2.04-1ubuntu44.1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "grub2-signed",
        "purl": "pkg:deb/ubuntu/grub2-signed@1.167~16.04.6?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.55",
        "1.56",
        "1.57",
        "1.58",
        "1.59",
        "1.61",
        "1.62",
        "1.63",
        "1.64",
        "1.65",
        "1.66",
        "1.66.1",
        "1.66.2",
        "1.66.6",
        "1.66.7",
        "1.66.8",
        "1.66.9",
        "1.66.11",
        "1.66.12",
        "1.66.14",
        "1.66.15",
        "1.66.16",
        "1.66.17",
        "1.66.18",
        "1.66.19",
        "1.66.20",
        "1.66.21",
        "1.66.22",
        "1.66.23",
        "1.66.26",
        "1.66.27",
        "1.66.28",
        "1.66.29",
        "1.167~16.04.1",
        "1.167~16.04.2",
        "1.167~16.04.4",
        "1.167~16.04.6"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "grub-efi-amd64",
            "binary_version": "2.04-1ubuntu44.1.2"
          },
          {
            "binary_name": "grub-efi-amd64-bin",
            "binary_version": "2.04-1ubuntu44.1.2"
          },
          {
            "binary_name": "grub-efi-arm64",
            "binary_version": "2.04-1ubuntu44.1.2"
          },
          {
            "binary_name": "grub-efi-arm64-bin",
            "binary_version": "2.04-1ubuntu44.1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "grub2-unsigned",
        "purl": "pkg:deb/ubuntu/grub2-unsigned@2.04-1ubuntu44.1.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.04-1ubuntu44",
        "2.04-1ubuntu44.1",
        "2.04-1ubuntu44.1.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "grub-efi-amd64-signed",
            "binary_version": "1.187.3~18.04.1+2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64-signed",
            "binary_version": "1.187.3~18.04.1+2.06-2ubuntu14.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "grub2-signed",
        "purl": "pkg:deb/ubuntu/grub2-signed@1.187.3~18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.187.3~18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.85",
        "1.86",
        "1.87",
        "1.89",
        "1.91",
        "1.92",
        "1.93",
        "1.93.1",
        "1.93.2",
        "1.93.3",
        "1.93.4",
        "1.93.5",
        "1.93.7",
        "1.93.8",
        "1.93.10",
        "1.93.11",
        "1.93.13",
        "1.93.14",
        "1.93.15",
        "1.93.16",
        "1.93.18",
        "1.93.19",
        "1.93.20",
        "1.93.21",
        "1.93.22",
        "1.93.24",
        "1.167~18.04.1",
        "1.167~18.04.3",
        "1.167~18.04.5",
        "1.173.2~18.04.1",
        "1.187.2~18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "grub-efi-amd64",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-amd64-bin",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64-bin",
            "binary_version": "2.06-2ubuntu14.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "grub2-unsigned",
        "purl": "pkg:deb/ubuntu/grub2-unsigned@2.06-2ubuntu14.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.06-2ubuntu14.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.04-1ubuntu44",
        "2.04-1ubuntu44.1",
        "2.04-1ubuntu44.1.2",
        "2.04-1ubuntu47.4",
        "2.06-2ubuntu14"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "grub-efi-amd64-signed",
            "binary_version": "1.187.3~20.04.1+2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64-signed",
            "binary_version": "1.187.3~20.04.1+2.06-2ubuntu14.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "grub2-signed",
        "purl": "pkg:deb/ubuntu/grub2-signed@1.187.3~20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.187.3~20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.128",
        "1.129",
        "1.130",
        "1.131",
        "1.133",
        "1.134",
        "1.135",
        "1.136",
        "1.137",
        "1.138",
        "1.139",
        "1.140",
        "1.141",
        "1.142",
        "1.142.1",
        "1.142.3",
        "1.142.4",
        "1.142.5",
        "1.142.6",
        "1.142.8",
        "1.142.9",
        "1.142.10",
        "1.142.11",
        "1.167",
        "1.167.2",
        "1.173.2~20.04.1",
        "1.173.4",
        "1.187.2~20.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "grub-efi-amd64",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-amd64-bin",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64-bin",
            "binary_version": "2.06-2ubuntu14.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "grub2-unsigned",
        "purl": "pkg:deb/ubuntu/grub2-unsigned@2.06-2ubuntu14.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.06-2ubuntu14.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.04-1ubuntu44",
        "2.04-1ubuntu44.2",
        "2.04-1ubuntu47.4",
        "2.04-1ubuntu47.5",
        "2.06-2ubuntu14"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "grub-efi-amd64-signed",
            "binary_version": "1.187.3~22.04.1+2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64-signed",
            "binary_version": "1.187.3~22.04.1+2.06-2ubuntu14.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "grub2-signed",
        "purl": "pkg:deb/ubuntu/grub2-signed@1.187.3~22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.187.3~22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.173",
        "1.174",
        "1.176",
        "1.177",
        "1.178",
        "1.179",
        "1.180",
        "1.182~22.04.1",
        "1.187.2"
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    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "grub-efi-amd64",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-amd64-bin",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64",
            "binary_version": "2.06-2ubuntu14.1"
          },
          {
            "binary_name": "grub-efi-arm64-bin",
            "binary_version": "2.06-2ubuntu14.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "grub2-unsigned",
        "purl": "pkg:deb/ubuntu/grub2-unsigned@2.06-2ubuntu14.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.06-2ubuntu14.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.04-1ubuntu47",
        "2.04-1ubuntu48",
        "2.06-2ubuntu3",
        "2.06-2ubuntu4",
        "2.06-2ubuntu5",
        "2.06-2ubuntu6",
        "2.06-2ubuntu7",
        "2.06-2ubuntu10",
        "2.06-2ubuntu14"
      ]
    }
  ],
  "aliases": [],
  "details": "Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm-\u003etotal_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.",
  "id": "UBUNTU-CVE-2022-28733",
  "modified": "2025-10-24T04:53:38Z",
  "published": "2023-07-20T01:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-28733"
    },
    {
      "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-2022-28733"
    }
  ],
  "related": [
    "USN-6355-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-28733"
  ]
}



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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.