rustsec-2023-0085
Vulnerability from osv_rustsec
Published
2023-09-15 12:00
Modified
2024-04-11 16:16
Summary
HPACK decoder panics on invalid input
Details

Due to insufficient checking of input data, decoding certain data sequences can lead to Decoder::decode panicking rather than returning an error.

Example code that triggers this vulnerability looks like this:

use hpack::Decoder;

pub fn main() {
  let input = &[0x3f];
  let mut decoder = Decoder::new();
  let _ = decoder.decode(input);
}

hpack is unmaintained. A crate with the panics fixed has been published as hpack-patched.

Also consider using fluke-hpack or httlib-huffman as an alternative.

To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "hpack",
        "purl": "pkg:cargo/hpack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-w7hm-hmxv-pvhf"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Due to insufficient checking of input data, decoding certain data sequences can\nlead to _Decoder::decode_ panicking rather than returning an error.\n\nExample code that triggers this vulnerability looks like this:\n\n```rust\nuse hpack::Decoder;\n\npub fn main() {\n  let input = \u0026[0x3f];\n  let mut decoder = Decoder::new();\n  let _ = decoder.decode(input);\n}\n```\n\nhpack is unmaintained. A crate with the panics fixed has been published as\n[hpack-patched](https://crates.io/crates/hpack-patched).\n\nAlso consider using [fluke-hpack](https://crates.io/crates/fluke-hpack) or\n[httlib-huffman](https://crates.io/crates/httlib-huffman) as an alternative.",
  "id": "RUSTSEC-2023-0085",
  "modified": "2024-04-11T16:16:20Z",
  "published": "2023-09-15T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/hpack"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0085.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mlalic/hpack-rs/issues/11"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sno2/hpack-rs-patched/commit/d669282924a95311599e9e7dd53869ee96b3a2f5"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "HPACK decoder panics on invalid input"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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