ghsa-f997-8gxg-r354
Vulnerability from github
Published
2021-08-25 20:58
Modified
2022-05-05 18:16
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Data races in lexer
Details

lexer is a plugin based lexical reader.Affected versions of this crate implements Sync for ReaderResult with the trait bound T: Send, E: Send. Since matching on the public enum ReaderResult provides access to &T & &E, allowing data race to a non-Sync type T or E. This can result in a memory corruption when multiple threads concurrently access &T or &E. Suggested fix for the bug is change the trait bounds imposed on T & E to be T: Sync, E: Sync.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "lexer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.1.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-36458"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-77"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-18T20:18:45Z",
    "nvd_published_at": "2021-08-08T06:15:00Z",
    "severity": "HIGH"
  },
  "details": "lexer is a plugin based lexical reader.Affected versions of this crate implements Sync for ReaderResult\u003cT, E\u003e with the trait bound T: Send, E: Send. Since matching on the public enum ReaderResult\u003cT, E\u003e provides access to \u0026T \u0026 \u0026E, allowing data race to a non-Sync type T or E. This can result in a memory corruption when multiple threads concurrently access \u0026T or \u0026E. Suggested fix for the bug is change the trait bounds imposed on T \u0026 E to be T: Sync, E: Sync.",
  "id": "GHSA-f997-8gxg-r354",
  "modified": "2022-05-05T18:16:25Z",
  "published": "2021-08-25T20:58:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36458"
    },
    {
      "type": "PACKAGE",
      "url": "https://gitlab.com/nathanfaucett/rs-lexer"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/nathanfaucett/rs-lexer/-/issues/2"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/lexer/RUSTSEC-2020-0138.md"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0138.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Data races in lexer"
}


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