rustsec-2021-0041
Vulnerability from osv_rustsec
Published
2021-03-18 12:00
Modified
2023-06-13 13:10
Summary
Denial of service through parsing payloads with too big exponent
Details

The parse_duration::parse function allows for parsing duration strings with exponents like 5e5s where under the hood, the BigInt type along with the pow function are used for such payloads. Passing an arbitrarily big exponent makes the parse_duration::parse function to process the payload for a very long time taking up CPU and memory.

This allows an attacker to cause a DoS if the parse_duration::parse function is used to process untrusted input.


{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "parse_duration::parse"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "parse_duration",
        "purl": "pkg:cargo/parse_duration"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CAN-2021-1000007",
    "CVE-2021-29932",
    "GHSA-qpgv-g792-wh6x"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "The `parse_duration::parse` function allows for parsing duration strings with exponents like `5e5s` where under the hood, the [`BigInt` type along with the `pow` function are used for such payloads](https://github.com/zeta12ti/parse_duration/blob/26940ab5cd4e3a9d6bd97aa101f8d4bbfd18ee8c/src/parse.rs#L335). Passing an arbitrarily big exponent makes the `parse_duration::parse` function to process the payload for a very long time taking up CPU and memory.\n\nThis allows an attacker to cause a DoS if the `parse_duration::parse` function is used to process untrusted input.",
  "id": "RUSTSEC-2021-0041",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2021-03-18T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/parse_duration"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0041.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/zeta12ti/parse_duration/issues/21"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of service through parsing payloads with too big exponent"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…