ghsa-3gvj-5493-c96f
Vulnerability from github
Published
2024-03-18 12:30
Modified
2025-03-10 18:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init

When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this issue was ignored because memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag. For example, this error will be triggered when calculating the Za value for SM2 separately.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52616"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-18T11:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init\n\nWhen the mpi_ec_ctx structure is initialized, some fields are not\ncleared, causing a crash when referencing the field when the\nstructure was released. Initially, this issue was ignored because\nmemory for mpi_ec_ctx is allocated with the __GFP_ZERO flag.\nFor example, this error will be triggered when calculating the\nZa value for SM2 separately.",
  "id": "GHSA-3gvj-5493-c96f",
  "modified": "2025-03-10T18:31:49Z",
  "published": "2024-03-18T12:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52616"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    }
  ],
  "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"
    }
  ]
}


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