{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.14.6"
              }
            ]
          }
        ]
      }
    }
  ],
  "details": "An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes.",
  "id": "CVE-2021-42252",
  "modified": "2026-03-13T21:52:06.663937540Z",
  "published": "2021-10-11T19:15:07.713Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.netapp.com/advisory/ntap-20211112-0006/"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}