Vulnerability-Lookup

GHSA-473C-M7P3-H25C

Vulnerability from github – Published: 2025-10-22 21:31 – Updated: 2025-10-22 21:31

Details

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

be2net: Fix buffer overflow in be_get_module_eeprom

be_cmd_read_port_transceiver_data assumes that it is given a buffer that is at least PAGE_DATA_LEN long, or twice that if the module supports SFF 8472. However, this is not always the case.

Fix this by passing the desired offset and length to be_cmd_read_port_transceiver_data so that we only copy the bytes once.

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49581"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:33Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbe2net: Fix buffer overflow in be_get_module_eeprom\n\nbe_cmd_read_port_transceiver_data assumes that it is given a buffer that\nis at least PAGE_DATA_LEN long, or twice that if the module supports SFF\n8472. However, this is not always the case.\n\nFix this by passing the desired offset and length to\nbe_cmd_read_port_transceiver_data so that we only copy the bytes once.",
  "id": "GHSA-473c-m7p3-h25c",
  "modified": "2025-10-22T21:31:16Z",
  "published": "2025-10-22T21:31:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49581"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18043da94c023f3ef09c15017bdb04e8f695ef10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/665cbe91de2f7c97c51ca8fce39aae26477c1948"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ff4f9df73e5c551a72ee6034886c17e8de6596d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8569f76df7ec5b4b51155c57523a0b356db5741"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7241f679a59cfe27f92cb5c6272cb429fb1f7ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe4473fc7940f14c4a12db873b9729134c212654"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49581 (GCVE-0-2022-49581)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2026-08-05 08:55

Title

be2net: Fix buffer overflow in be_get_module_eeprom

Summary

In the Linux kernel, the following vulnerability has been resolved: be2net: Fix buffer overflow in be_get_module_eeprom be_cmd_read_port_transceiver_data assumes that it is given a buffer that is at least PAGE_DATA_LEN long, or twice that if the module supports SFF 8472. However, this is not always the case. Fix this by passing the desired offset and length to be_cmd_read_port_transceiver_data so that we only copy the bytes once.

Severity

7.8 (High)


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

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/a5a8fc0679a8fd58d…
https://git.kernel.org/stable/c/fe4473fc7940f14c4…
https://git.kernel.org/stable/c/8ff4f9df73e5c551a…
https://git.kernel.org/stable/c/a8569f76df7ec5b4b…
https://git.kernel.org/stable/c/665cbe91de2f7c97c…
https://git.kernel.org/stable/c/aba8ff847f4f927ad…
https://git.kernel.org/stable/c/18043da94c023f3ef…
https://git.kernel.org/stable/c/d7241f679a59cfe27…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e36edd9d26cf257511548edaf2b7a56eb4fed854 , < a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9 (git) Affected: e36edd9d26cf257511548edaf2b7a56eb4fed854 , < fe4473fc7940f14c4a12db873b9729134c212654 (git) Affected: e36edd9d26cf257511548edaf2b7a56eb4fed854 , < 8ff4f9df73e5c551a72ee6034886c17e8de6596d (git) Affected: e36edd9d26cf257511548edaf2b7a56eb4fed854 , < a8569f76df7ec5b4b51155c57523a0b356db5741 (git) Affected: e36edd9d26cf257511548edaf2b7a56eb4fed854 , < 665cbe91de2f7c97c51ca8fce39aae26477c1948 (git) Affected: e36edd9d26cf257511548edaf2b7a56eb4fed854 , < aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f (git) Affected: e36edd9d26cf257511548edaf2b7a56eb4fed854 , < 18043da94c023f3ef09c15017bdb04e8f695ef10 (git) Affected: e36edd9d26cf257511548edaf2b7a56eb4fed854 , < d7241f679a59cfe27f92cb5c6272cb429fb1f7ec (git)
Linux	Linux	Affected: 3.18 Unaffected: 0 , < 3.18 (semver) Unaffected: 4.9.325 , ≤ 4.9.* (semver) Unaffected: 4.14.290 , ≤ 4.14.* (semver) Unaffected: 4.19.254 , ≤ 4.19.* (semver) Unaffected: 5.4.208 , ≤ 5.4.* (semver) Unaffected: 5.10.134 , ≤ 5.10.* (semver) Unaffected: 5.15.58 , ≤ 5.15.* (semver) Unaffected: 5.18.15 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/emulex/benet/be_cmds.c",
            "drivers/net/ethernet/emulex/benet/be_cmds.h",
            "drivers/net/ethernet/emulex/benet/be_ethtool.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9",
              "status": "affected",
              "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854",
              "versionType": "git"
            },
            {
              "lessThan": "fe4473fc7940f14c4a12db873b9729134c212654",
              "status": "affected",
              "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854",
              "versionType": "git"
            },
            {
              "lessThan": "8ff4f9df73e5c551a72ee6034886c17e8de6596d",
              "status": "affected",
              "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854",
              "versionType": "git"
            },
            {
              "lessThan": "a8569f76df7ec5b4b51155c57523a0b356db5741",
              "status": "affected",
              "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854",
              "versionType": "git"
            },
            {
              "lessThan": "665cbe91de2f7c97c51ca8fce39aae26477c1948",
              "status": "affected",
              "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854",
              "versionType": "git"
            },
            {
              "lessThan": "aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f",
              "status": "affected",
              "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854",
              "versionType": "git"
            },
            {
              "lessThan": "18043da94c023f3ef09c15017bdb04e8f695ef10",
              "status": "affected",
              "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854",
              "versionType": "git"
            },
            {
              "lessThan": "d7241f679a59cfe27f92cb5c6272cb429fb1f7ec",
              "status": "affected",
              "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/emulex/benet/be_cmds.c",
            "drivers/net/ethernet/emulex/benet/be_cmds.h",
            "drivers/net/ethernet/emulex/benet/be_ethtool.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.18"
            },
            {
              "lessThan": "3.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.325",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.290",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.254",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.208",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.134",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.58",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.325",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.290",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.254",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.208",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.134",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.58",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.15",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbe2net: Fix buffer overflow in be_get_module_eeprom\n\nbe_cmd_read_port_transceiver_data assumes that it is given a buffer that\nis at least PAGE_DATA_LEN long, or twice that if the module supports SFF\n8472. However, this is not always the case.\n\nFix this by passing the desired offset and length to\nbe_cmd_read_port_transceiver_data so that we only copy the bytes once."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The overflow is reached only via local ethtool ioctl/netlink (ETHTOOL_GMODULEEEPROM / ETHTOOL_MSG_MODULE_EEPROM_GET) into be_get_module_eeprom; it is not reachable from network packet processing.\nAC:L - An attacker with CAP_NET_ADMIN can reliably trigger the overflow by requesting a short module-EEPROM read (e.g. length 1 via the netlink fallback), which allocates a too-small kmalloc buffer while the driver still memcpy\u0027s PAGE_DATA_LEN bytes.\nPR:L - ETHTOOL_GMODULEEEPROM and the netlink MODULE_EEPROM_GET path require CAP_NET_ADMIN (ns_capable / GENL_UNS_ADMIN_PERM), which is Low rather than full root; the driver\u0027s check_privilege(MAX_PRIVILEGES) gate passes on typical PF be2net adapters.\nUI:N - Exploitation is a direct ethtool/netlink call by the attacker; no separate victim action is required.\nS:U - Impact is kernel memory corruption within the same host OS authority; this is not a VM/IOMMU/sandbox boundary escape.\nC:H - The heap out-of-bounds write corrupts adjacent kernel heap objects and can be leveraged for information disclosure primitives, so confidentiality impact is High.\nI:H - A multi-hundred-byte heap overflow write is memory corruption that can enable control-flow hijacking / arbitrary write primitives, so integrity impact is High.\nA:H - Heap corruption from the oversized memcpy can cause kernel oops/panic or allocator crashes, yielding High availability impact."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:55:50.751Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9"
        },
        {
          "url": "https://git.kernel.org/stable/c/fe4473fc7940f14c4a12db873b9729134c212654"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ff4f9df73e5c551a72ee6034886c17e8de6596d"
        },
        {
          "url": "https://git.kernel.org/stable/c/a8569f76df7ec5b4b51155c57523a0b356db5741"
        },
        {
          "url": "https://git.kernel.org/stable/c/665cbe91de2f7c97c51ca8fce39aae26477c1948"
        },
        {
          "url": "https://git.kernel.org/stable/c/aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f"
        },
        {
          "url": "https://git.kernel.org/stable/c/18043da94c023f3ef09c15017bdb04e8f695ef10"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7241f679a59cfe27f92cb5c6272cb429fb1f7ec"
        }
      ],
      "title": "be2net: Fix buffer overflow in be_get_module_eeprom",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49581",
    "datePublished": "2025-02-26T02:23:19.148Z",
    "dateReserved": "2025-02-26T02:21:30.412Z",
    "dateUpdated": "2026-08-05T08:55:50.751Z",
    "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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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