Vulnerability-Lookup

GHSA-3G24-MFF9-8MV9

Vulnerability from github – Published: 2025-12-16 18:31 – Updated: 2026-07-30 06:32

Details

In the Linux kernel, the following vulnerability has been resolved:

libceph: replace BUG_ON with bounds check for map->max_osd

OSD indexes come from untrusted network packets. Boundary checks are added to validate these against map->max_osd.

[ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic edits ]

Severity

7.5 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68283"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-16T16:16:07Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: replace BUG_ON with bounds check for map-\u003emax_osd\n\nOSD indexes come from untrusted network packets. Boundary checks are\nadded to validate these against map-\u003emax_osd.\n\n[ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic\n  edits ]",
  "id": "GHSA-3g24-mff9-8mv9",
  "modified": "2026-07-30T06:32:24Z",
  "published": "2025-12-16T18:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68283"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/57f5fbae9f1024aba17ff75e00433324115c548a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4368b7f97014e1015445d61abd0b27c4c6e8424"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/becc488a4d864db338ebd4e313aa3c77da24b604"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec3797f043756a94ea2d0f106022e14ac4946c02"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-68283 (GCVE-0-2025-68283)

Vulnerability from cvelistv5 – Published: 2025-12-16 15:06 – Updated: 2026-08-05 12:10

Title

libceph: replace BUG_ON with bounds check for map->max_osd

Summary

In the Linux kernel, the following vulnerability has been resolved: libceph: replace BUG_ON with bounds check for map->max_osd OSD indexes come from untrusted network packets. Boundary checks are added to validate these against map->max_osd. [ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic edits ]

Severity

7.5 (High)


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

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/57f5fbae9f1024aba…
https://git.kernel.org/stable/c/becc488a4d864db33…
https://git.kernel.org/stable/c/e67e3be690f5f7e3b…
https://git.kernel.org/stable/c/b4368b7f97014e101…
https://git.kernel.org/stable/c/ec3797f043756a94e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f24e9980eb860d8600cbe5ef3d2fd9295320d229 , < 57f5fbae9f1024aba17ff75e00433324115c548a (git) Affected: f24e9980eb860d8600cbe5ef3d2fd9295320d229 , < becc488a4d864db338ebd4e313aa3c77da24b604 (git) Affected: f24e9980eb860d8600cbe5ef3d2fd9295320d229 , < e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d (git) Affected: f24e9980eb860d8600cbe5ef3d2fd9295320d229 , < b4368b7f97014e1015445d61abd0b27c4c6e8424 (git) Affected: f24e9980eb860d8600cbe5ef3d2fd9295320d229 , < ec3797f043756a94ea2d0f106022e14ac4946c02 (git)
Linux	Linux	Affected: 2.6.34 Unaffected: 0 , < 2.6.34 (semver) Unaffected: 6.1.159 , ≤ 6.1.* (semver) Unaffected: 6.6.119 , ≤ 6.6.* (semver) Unaffected: 6.12.61 , ≤ 6.12.* (semver) Unaffected: 6.17.11 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ceph/osdmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "57f5fbae9f1024aba17ff75e00433324115c548a",
              "status": "affected",
              "version": "f24e9980eb860d8600cbe5ef3d2fd9295320d229",
              "versionType": "git"
            },
            {
              "lessThan": "becc488a4d864db338ebd4e313aa3c77da24b604",
              "status": "affected",
              "version": "f24e9980eb860d8600cbe5ef3d2fd9295320d229",
              "versionType": "git"
            },
            {
              "lessThan": "e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d",
              "status": "affected",
              "version": "f24e9980eb860d8600cbe5ef3d2fd9295320d229",
              "versionType": "git"
            },
            {
              "lessThan": "b4368b7f97014e1015445d61abd0b27c4c6e8424",
              "status": "affected",
              "version": "f24e9980eb860d8600cbe5ef3d2fd9295320d229",
              "versionType": "git"
            },
            {
              "lessThan": "ec3797f043756a94ea2d0f106022e14ac4946c02",
              "status": "affected",
              "version": "f24e9980eb860d8600cbe5ef3d2fd9295320d229",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ceph/osdmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.34"
            },
            {
              "lessThan": "2.6.34",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.119",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.159",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.119",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.61",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.11",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: replace BUG_ON with bounds check for map-\u003emax_osd\n\nOSD indexes come from untrusted network packets. Boundary checks are\nadded to validate these against map-\u003emax_osd.\n\n[ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic\n  edits ]"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - An attacker-controlled Ceph monitor or OSD can deliver a crafted CEPH_MSG_OSD_MAP over TCP to an active kernel CephFS or RBD client.\nAC:L - The attacker controls both map-\u003emax_osd and the decoded OSD index, making the BUG_ON reliably reachable without a race or unpredictable condition.\nPR:N - The default legacy messenger monitor path dispatches OSD-map messages before Ceph authentication completes, so an attacker controlling the selected endpoint needs no credentials.\nUI:N - An active Ceph client automatically receives and applies map updates without any user action at exploitation time.\nS:U - The failure occurs within the host kernel and does not cross a separate security authority such as a hypervisor boundary.\nC:N - The BUG_ON executes before the invalid index is used for an out-of-bounds access, providing no information-disclosure primitive.\nI:N - The vulnerable paths terminate at BUG_ON before performing an out-of-bounds write, so the defect does not provide memory corruption or code execution.\nA:H - The crafted index triggers a kernel BUG, which can panic or reboot the host or leave the Ceph workqueue and locked subsystem unusable."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:10:36.982Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/57f5fbae9f1024aba17ff75e00433324115c548a"
        },
        {
          "url": "https://git.kernel.org/stable/c/becc488a4d864db338ebd4e313aa3c77da24b604"
        },
        {
          "url": "https://git.kernel.org/stable/c/e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4368b7f97014e1015445d61abd0b27c4c6e8424"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec3797f043756a94ea2d0f106022e14ac4946c02"
        }
      ],
      "title": "libceph: replace BUG_ON with bounds check for map-\u003emax_osd",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68283",
    "datePublished": "2025-12-16T15:06:05.355Z",
    "dateReserved": "2025-12-16T14:48:05.291Z",
    "dateUpdated": "2026-08-05T12:10:36.982Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
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