ghsa-gc28-phwf-f5ww
Vulnerability from github
Published
2024-08-17 12:30
Modified
2024-10-31 00:30
Details

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

bna: adjust 'name' buf size of bna_tcb and bna_ccb structures

To have enough space to write all possible sprintf() args. Currently 'name' size is 16, but the first '%s' specifier may already need at least 16 characters, since 'bnad->netdev->name' is used there.

For '%d' specifiers, assume that they require: * 1 char for 'tx_id + tx_info->tcb[i]->id' sum, BNAD_MAX_TXQ_PER_TX is 8 * 2 chars for 'rx_id + rx_info->rx_ctrl[i].ccb->id', BNAD_MAX_RXP_PER_RX is 16

And replace sprintf with snprintf.

Detected using the static analysis tool - Svace.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2024-43839"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-17T10:15:09Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbna: adjust \u0027name\u0027 buf size of bna_tcb and bna_ccb structures\n\nTo have enough space to write all possible sprintf() args. Currently\n\u0027name\u0027 size is 16, but the first \u0027%s\u0027 specifier may already need at\nleast 16 characters, since \u0027bnad-\u003enetdev-\u003ename\u0027 is used there.\n\nFor \u0027%d\u0027 specifiers, assume that they require:\n * 1 char for \u0027tx_id + tx_info-\u003etcb[i]-\u003eid\u0027 sum, BNAD_MAX_TXQ_PER_TX is 8\n * 2 chars for \u0027rx_id + rx_info-\u003erx_ctrl[i].ccb-\u003eid\u0027, BNAD_MAX_RXP_PER_RX\n   is 16\n\nAnd replace sprintf with snprintf.\n\nDetected using the static analysis tool - Svace.",
  "id": "GHSA-gc28-phwf-f5ww",
  "modified": "2024-10-31T00:30:36Z",
  "published": "2024-08-17T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43839"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ce46045f9b90d952602e2c0b8886cfadf860bf1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d20c4044ab4d0e6a99aa35853e66f0aed5589e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab748dd10d8742561f2980fea08ffb4f0cacfdef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c90b1cd7758fd4839909e838ae195d19f8065d76"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9741a03dc8e491e57b95fba0058ab46b7e506da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0f48f51d55fb187400e9787192eda09fa200ff5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f121740f69eda4da2de9a20a6687a13593e72540"
    }
  ],
  "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"
    }
  ]
}


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