github - ghsa-x48h-3p3j-rpqg

GHSA-X48H-3P3J-RPQG

Vulnerability from github – Published: 2025-12-09 18:30 – Updated: 2025-12-09 18:30

Details

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

usb: early: xhci-dbc: Fix a potential out-of-bound memory access

If xdbc_bulk_write() fails, the values in 'buf' can be anything. So the string is not guaranteed to be NULL terminated when xdbc_trace() is called.

Reserve an extra byte, which will be zeroed automatically because 'buf' is a static variable, in order to avoid troubles, should it happen.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53840"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-09T16:17:23Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: early: xhci-dbc: Fix a potential out-of-bound memory access\n\nIf xdbc_bulk_write() fails, the values in \u0027buf\u0027 can be anything. So the\nstring is not guaranteed to be NULL terminated when xdbc_trace() is called.\n\nReserve an extra byte, which will be zeroed automatically because \u0027buf\u0027 is\na static variable, in order to avoid troubles, should it happen.",
  "id": "GHSA-x48h-3p3j-rpqg",
  "modified": "2025-12-09T18:30:33Z",
  "published": "2025-12-09T18:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53840"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/351c8d8650d1ccc006255fa01f98b6c6496a02e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4a97ab3db5c081eb6e7dba91306adefb461e0bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df7c8aba7309f4dc55df94e06b67f576c0f52406"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8fb0f13e45cf361fd06593d3cb2d89915cd3bd0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-53840 (GCVE-0-2023-53840)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2025-12-09 01:29

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: early: xhci-dbc: Fix a potential out-of-bound memory access If xdbc_bulk_write() fails, the values in 'buf' can be anything. So the string is not guaranteed to be NULL terminated when xdbc_trace() is called. Reserve an extra byte, which will be zeroed automatically because 'buf' is a static variable, in order to avoid troubles, should it happen.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/e8fb0f13e45cf361f…
	https://git.kernel.org/stable/c/351c8d8650d1ccc00…
	https://git.kernel.org/stable/c/df7c8aba7309f4dc5…
	https://git.kernel.org/stable/c/a4a97ab3db5c081eb…

Impacted products

Vendor

Product

Version

Linux

Affected: aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0 , < e8fb0f13e45cf361fd06593d3cb2d89915cd3bd0 (git)
Affected: aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0 , < 351c8d8650d1ccc006255fa01f98b6c6496a02e5 (git)
Affected: aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0 , < df7c8aba7309f4dc55df94e06b67f576c0f52406 (git)
Affected: aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0 , < a4a97ab3db5c081eb6e7dba91306adefb461e0bd (git)

Linux

Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.15.99 , ≤ 5.15.* (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/early/xhci-dbc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e8fb0f13e45cf361fd06593d3cb2d89915cd3bd0",
              "status": "affected",
              "version": "aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0",
              "versionType": "git"
            },
            {
              "lessThan": "351c8d8650d1ccc006255fa01f98b6c6496a02e5",
              "status": "affected",
              "version": "aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0",
              "versionType": "git"
            },
            {
              "lessThan": "df7c8aba7309f4dc55df94e06b67f576c0f52406",
              "status": "affected",
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              "version": "aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/early/xhci-dbc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "4.12"
            },
            {
              "lessThan": "4.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.99",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.99",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.16",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
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                },
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                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: early: xhci-dbc: Fix a potential out-of-bound memory access\n\nIf xdbc_bulk_write() fails, the values in \u0027buf\u0027 can be anything. So the\nstring is not guaranteed to be NULL terminated when xdbc_trace() is called.\n\nReserve an extra byte, which will be zeroed automatically because \u0027buf\u0027 is\na static variable, in order to avoid troubles, should it happen."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T01:29:56.848Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
        {
          "url": "https://git.kernel.org/stable/c/df7c8aba7309f4dc55df94e06b67f576c0f52406"
        },
        {
          "url": "https://git.kernel.org/stable/c/a4a97ab3db5c081eb6e7dba91306adefb461e0bd"
        }
      ],
      "title": "usb: early: xhci-dbc: Fix a potential out-of-bound memory access",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53840",
    "datePublished": "2025-12-09T01:29:56.848Z",
    "dateReserved": "2025-12-09T01:27:17.826Z",
    "dateUpdated": "2025-12-09T01:29:56.848Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-X48H-3P3J-RPQG

CVE-2023-53840 (GCVE-0-2023-53840)

Tags

Sightings

Nomenclature