rustsec-2021-0145
Vulnerability from osv_rustsec
Published
2021-07-04 12:00
Modified
2023-07-08 12:30
Summary
Potential unaligned read
Details

On windows, atty dereferences a potentially unaligned pointer.

In practice however, the pointer won't be unaligned unless a custom global allocator is used.

In particular, the System allocator on windows uses HeapAlloc, which guarantees a large enough alignment.

atty is Unmaintained

A Pull Request with a fix has been provided over a year ago but the maintainer seems to be unreachable.

Last release of atty was almost 3 years ago.

Possible Alternative(s)

The below list has not been vetted in any way and may or may not contain alternatives;

To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": null,
        "informational": "unsound"
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": [
            "windows"
          ]
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "atty",
        "purl": "pkg:cargo/atty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-g98v-hv3f-hcfr"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "On windows, `atty` dereferences a potentially unaligned pointer.\n\nIn practice however, the pointer won\u0027t be unaligned unless a custom global allocator is used.\n\nIn particular, the `System` allocator on windows uses `HeapAlloc`, which guarantees a large enough alignment.\n\n# atty is Unmaintained\n\nA Pull Request with a fix has been provided over a year ago but the maintainer seems to be unreachable.\n\nLast release of `atty` was almost 3 years ago.\n\n## Possible Alternative(s)\n\nThe below list has not been vetted in any way and may or may not contain alternatives;\n\n - [std::io::IsTerminal](https://doc.rust-lang.org/stable/std/io/trait.IsTerminal.html) - Stable since Rust 1.70.0\n - [is-terminal](https://crates.io/crates/is-terminal) - Standalone crate supporting Rust older than 1.70.0",
  "id": "RUSTSEC-2021-0145",
  "modified": "2023-07-08T12:30:19Z",
  "published": "2021-07-04T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/atty"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0145.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/softprops/atty/issues/50"
    },
    {
      "type": "WEB",
      "url": "https://github.com/softprops/atty/pull/51"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/softprops/atty/issues/57"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "Potential unaligned read"
}


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