{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "mnl",
        "purl": "pkg:cargo/mnl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.3.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-585q-cm62-757j"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "The function `mnl::cb_run` is marked as safe but exhibits unsound behavior when processing malformed Netlink message buffers.\n\nPassing a crafted byte slice to `mnl::cb_run` can trigger memory violations. The function does not sufficiently validate the input buffer structure before processing, leading to out-of-bounds reads.\n\nThis vulnerability allows an attacker to cause a Denial of Service (segmentation fault) or potentially read unmapped memory by providing a malformed Netlink message.\n\nThe underlying issue is a bug in `libmnl` where during validation `nlh-\u003enlmsg_len` is cast to an `int` and becomes negative if `nlmsg_len` is greater than `INT_MAX`. This causes the validation to succeed even if the buffer is too small for the message. This has been fixed in `libmnl` but still affects version 1.0.5.\n\nThe issue in `mnl` was fixed in commit `cd51bdc` by checking the validity of netlink messages passed to `mnl::cb_run`.",
  "id": "RUSTSEC-2025-0142",
  "modified": "2026-02-10T13:23:41Z",
  "published": "2025-10-18T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/mnl"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0142.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mullvad/mnl-rs/issues/15"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "Segmentation fault and invalid memory read in `mnl::cb_run`"
}