Vulnerability-Lookup

GHSA-P4X7-WJCJ-5XFJ

Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2025-03-05 21:32

Details

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

can: etas_es58x: fix potential NULL pointer dereference on udev->serial

The driver assumed that es58x_dev->udev->serial could never be NULL. While this is true on commercially available devices, an attacker could spoof the device identity providing a NULL USB serial number. That would trigger a NULL pointer dereference.

Add a check on es58x_dev->udev->serial before accessing it.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21773"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: etas_es58x: fix potential NULL pointer dereference on udev-\u003eserial\n\nThe driver assumed that es58x_dev-\u003eudev-\u003eserial could never be NULL.\nWhile this is true on commercially available devices, an attacker\ncould spoof the device identity providing a NULL USB serial number.\nThat would trigger a NULL pointer dereference.\n\nAdd a check on es58x_dev-\u003eudev-\u003eserial before accessing it.",
  "id": "GHSA-p4x7-wjcj-5xfj",
  "modified": "2025-03-05T21:32:06Z",
  "published": "2025-02-27T03:34:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21773"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1590667a60753ee5a54871f2840ceefd4a7831fa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5059ea98d7bc133903d3e47ab36df6ed11d0c95f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/722e8e1219c8b6ac2865011fe339315d6a8d0721"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1ad2109ce41c9e3912dadd07ad8a9c640064ffb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-21773 (GCVE-0-2025-21773)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-11 21:06

Title

can: etas_es58x: fix potential NULL pointer dereference on udev->serial

Summary

In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: fix potential NULL pointer dereference on udev->serial The driver assumed that es58x_dev->udev->serial could never be NULL. While this is true on commercially available devices, an attacker could spoof the device identity providing a NULL USB serial number. That would trigger a NULL pointer dereference. Add a check on es58x_dev->udev->serial before accessing it.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:30 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux mitre root Scorecard

References

4 references

URL	Tags
https://git.kernel.org/stable/c/1590667a60753ee5a…
https://git.kernel.org/stable/c/722e8e1219c8b6ac2…
https://git.kernel.org/stable/c/5059ea98d7bc13390…
https://git.kernel.org/stable/c/a1ad2109ce41c9e39…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9f06631c3f1f0f298536443df85a6837ba4c5f5c , < 1590667a60753ee5a54871f2840ceefd4a7831fa (git) Affected: 9f06631c3f1f0f298536443df85a6837ba4c5f5c , < 722e8e1219c8b6ac2865011fe339315d6a8d0721 (git) Affected: 9f06631c3f1f0f298536443df85a6837ba4c5f5c , < 5059ea98d7bc133903d3e47ab36df6ed11d0c95f (git) Affected: 9f06631c3f1f0f298536443df85a6837ba4c5f5c , < a1ad2109ce41c9e3912dadd07ad8a9c640064ffb (git)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-21773",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:30:35.613393Z",
                "version": "2.0.3"
              },
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            }
          }
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/usb/etas_es58x/es58x_devlink.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "722e8e1219c8b6ac2865011fe339315d6a8d0721",
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              "lessThan": "5059ea98d7bc133903d3e47ab36df6ed11d0c95f",
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            },
            {
              "lessThan": "a1ad2109ce41c9e3912dadd07ad8a9c640064ffb",
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              "versionType": "git"
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        },
        {
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
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              "version": "0",
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              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "6.12.*",
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            },
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.79",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
                {
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              ],
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: etas_es58x: fix potential NULL pointer dereference on udev-\u003eserial\n\nThe driver assumed that es58x_dev-\u003eudev-\u003eserial could never be NULL.\nWhile this is true on commercially available devices, an attacker\ncould spoof the device identity providing a NULL USB serial number.\nThat would trigger a NULL pointer dereference.\n\nAdd a check on es58x_dev-\u003eudev-\u003eserial before accessing it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:06:08.977Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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        },
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      "title": "can: etas_es58x: fix potential NULL pointer dereference on udev-\u003eserial",
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    "datePublished": "2025-02-27T02:18:20.013Z",
    "dateReserved": "2024-12-29T08:45:45.762Z",
    "dateUpdated": "2026-05-11T21:06:08.977Z",
    "state": "PUBLISHED"
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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.

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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GHSA-P4X7-WJCJ-5XFJ

CVE-2025-21773 (GCVE-0-2025-21773)

Tags

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Nomenclature

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