ubuntu-cve-2020-25576
Vulnerability from osv_ubuntu
Published
2020-09-14 19:15
Modified
2025-10-24 04:48
Summary
Details

An issue was discovered in the rand_core crate before 0.4.2 for Rust. Casting of byte slices to integer slices mishandles alignment constraints.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-rand-core-0.2+alloc-dev",
            "binary_version": "0.2.2-2"
          },
          {
            "binary_name": "librust-rand-core-0.2+serde1-dev",
            "binary_version": "0.2.2-2"
          },
          {
            "binary_name": "librust-rand-core-0.2+std-dev",
            "binary_version": "0.2.2-2"
          },
          {
            "binary_name": "librust-rand-core-0.2-dev",
            "binary_version": "0.2.2-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "rust-rand-core-0.2",
        "purl": "pkg:deb/ubuntu/rust-rand-core-0.2@0.2.2-2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.2.2-1",
        "0.2.2-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-rand-core-0.3+serde-derive-dev",
            "binary_version": "0.3.0-2"
          },
          {
            "binary_name": "librust-rand-core-0.3+serde-dev",
            "binary_version": "0.3.0-2"
          },
          {
            "binary_name": "librust-rand-core-0.3+serde1-dev",
            "binary_version": "0.3.0-2"
          },
          {
            "binary_name": "librust-rand-core-0.3-dev",
            "binary_version": "0.3.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "rust-rand-core-0.3",
        "purl": "pkg:deb/ubuntu/rust-rand-core-0.3@0.3.0-2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3.0-1",
        "0.3.0-2"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in the rand_core crate before 0.4.2 for Rust. Casting of byte slices to integer slices mishandles alignment constraints.",
  "id": "UBUNTU-CVE-2020-25576",
  "modified": "2025-10-24T04:48:42Z",
  "published": "2020-09-14T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-25576"
    },
    {
      "type": "REPORT",
      "url": "https://rustsec.org/advisories/RUSTSEC-2019-0035.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rust-random/rand/blob/master/rand_core/CHANGELOG.md#050---2019-06-06"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-25576"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-25576"
  ]
}



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