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

Vulnerability from cvelistv5 – Published: 2025-03-03 17:14 – Updated: 2026-06-29 23:24
VLAI
Title
Grub2: reiserfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data
Summary
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
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-04 16:14 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Affected: 0 , ≤ 2.12 (semver)
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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Date Public
2025-02-18 18:00
Show details on NVD website
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              "url": "https://access.redhat.com/security/cve/CVE-2025-0684"
            },
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              "name": "RHBZ#2346119",
              "tags": [
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2346119"
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          "timeline": [
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              "time": "2025-02-17T15:12:50.927Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2025-02-18T18:00:00.000Z",
              "value": "Made public."
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          ],
          "title": "Grub2: reiserfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data",
          "workarounds": [
            {
              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
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          "x_redhatCweChain": "CWE-787: Out-of-bounds Write"
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      },
      "cveMetadata": {
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        "assignerShortName": "redhat",
        "cveId": "CVE-2025-0684",
        "datePublished": "2025-03-03T17:14:07.911Z",
        "dateReserved": "2025-01-23T19:05:34.260Z",
        "dateUpdated": "2026-06-29T23:24:51.364Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.