Vulnerability-Lookup

ubuntu-cve-2025-0684

Vulnerability from osv_ubuntu

Published

2025-02-18 18:00

Modified

2026-05-20 15:15

Summary

Details

A flaw was found in grub2. When performing a symlink lookup from a reiserfs filesystem, grub's reiserfs fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciouly crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_reiserfs_read_symlink() will call grub_reiserfs_read_real() with a overflown length parameter, leading to a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and can result in arbitrary code execution, by-passing secure boot protections.

Severity

6.4 (Medium)


                    
                      CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

6.4 (Medium)


                    
                      CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-0684	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-0684	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "grub-common",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-coreboot",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-coreboot-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi-amd64",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi-amd64-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi-arm",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi-arm-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi-arm64",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi-arm64-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi-ia32",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-efi-ia32-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-emu",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-firmware-qemu",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-ieee1275",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-ieee1275-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-linuxbios",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-pc",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-pc-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-rescue-pc",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-theme-starfield",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-uboot",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-uboot-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-xen",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub-xen-bin",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub2",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          },
          {
            "binary_name": "grub2-common",
            "binary_version": "2.02~beta2-9ubuntu1.21"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "grub2",
        "purl": "pkg:deb/ubuntu/grub2@2.02~beta2-9ubuntu1.21?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.00-19ubuntu2",
        "2.00-19ubuntu3",
        "2.00-19ubuntu4",
        "2.00-20",
        "2.00-21",
        "2.00-22",
        "2.02~beta2-5",
        "2.02~beta2-6",
        "2.02~beta2-7",
        "2.02~beta2-8",
        "2.02~beta2-9",
        "2.02~beta2-9ubuntu1",
        "2.02~beta2-9ubuntu1.1",
        "2.02~beta2-9ubuntu1.2",
        "2.02~beta2-9ubuntu1.3",
        "2.02~beta2-9ubuntu1.4",
        "2.02~beta2-9ubuntu1.5",
        "2.02~beta2-9ubuntu1.6",
        "2.02~beta2-9ubuntu1.7",
        "2.02~beta2-9ubuntu1.8",
        "2.02~beta2-9ubuntu1.11",
        "2.02~beta2-9ubuntu1.12",
        "2.02~beta2-9ubuntu1.14",
        "2.02~beta2-9ubuntu1.15",
        "2.02~beta2-9ubuntu1.16",
        "2.02~beta2-9ubuntu1.17",
        "2.02~beta2-9ubuntu1.20",
        "2.02~beta2-9ubuntu1.21"
      ]
    },
    {
      "ecosystem_specific": {
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        ]
      },
      "package": {
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        "name": "grub2-signed",
        "purl": "pkg:deb/ubuntu/grub2-signed@1.34.24?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "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",
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      },
      "ranges": [
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          "events": [
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              "introduced": "0"
            }
          ],
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        }
      ],
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        "2.04-1ubuntu44.1",
        "2.04-1ubuntu44.1.2"
      ]
    },
    {
      "ecosystem_specific": {
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          },
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            "binary_name": "grub-efi-arm64-signed",
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        ]
      },
      "package": {
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      },
      "ranges": [
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        "1.87",
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        "1.92",
        "1.93",
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        "1.93.2",
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    {
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          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "grub2-signed",
        "purl": "pkg:deb/ubuntu/grub2-signed@1.187.12~20.04?arch=source\u0026distro=focal"
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          },
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            "binary_name": "grub-efi-arm64",
            "binary_version": "2.12-1ubuntu7.3"
          },
          {
            "binary_name": "grub-efi-arm64-bin",
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        ]
      },
      "package": {
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    {
      "ecosystem_specific": {
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            "binary_name": "grub-efi-amd64-signed",
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            "binary_name": "grub-efi-arm64-signed",
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
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      },
      "ranges": [
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      ],
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        "1.214"
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  ],
  "aliases": [],
  "details": "A flaw was found in grub2. When performing a symlink lookup from a reiserfs filesystem, grub\u0027s reiserfs fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciouly crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_reiserfs_read_symlink() will call grub_reiserfs_read_real() with a overflown length parameter, leading to a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub\u0027s internal critical data and can result in arbitrary code execution, by-passing secure boot protections.",
  "id": "UBUNTU-CVE-2025-0684",
  "modified": "2026-05-20T15:15:54Z",
  "published": "2025-02-18T18:00:00Z",
  "references": [
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  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
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      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-0684"
  ]
}

CVE-2025-0684 (GCVE-0-2025-0684)

Vulnerability from cvelistv5 – Published: 2025-03-03 17:14 – Updated: 2026-06-29 23:24

Title

Grub2: reiserfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data

Summary

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/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 2025-03-04 16:14 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

redhat redhat root

References

3 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2025-0684	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2346119	issue-trackingx_refsource_REDHAT
https://lists.gnu.org/archive/html/grub-devel/202…

Impacted products

6 products

Vendor	Product	Version
		Affected: 0 , ≤ 2.12 (semver)
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2025-02-18 18:00

Show details on NVD website

JSON

To clipboard

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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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.

Action not permitted

ubuntu-cve-2025-0684

Vulnerability from osv_ubuntu

CVE-2025-0684 (GCVE-0-2025-0684)

Tags

Sightings

Nomenclature

Related by attack behaviour