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CVE-2021-43308 (GCVE-0-2021-43308)

Vulnerability from cvelistv5 – Published: 2022-06-01 16:47 – Updated: 2024-09-16 17:28
VLAI
Title
Exponential ReDoS in markdown-link-extractor
Summary
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module's exported function
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version CPE status
markdown-link-extractor markdown-link-extractor Affected: unspecified , < 3.0.2 (custom)
guessed Create a notification for this product.
Date Public
2022-05-29 00:00
Credits
Denys Vozniuk from JFrog Security Research
Show details on NVD website
To clipboard 

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    "redhat_vex": {
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      "cve": "CVE-2021-43308",
      "id": "CVE-2021-43308",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Exponential ReDoS in markdown-link-extractor",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-43308.json",
      "version": "3"
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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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.


Detection rules are retrieved from Rulezet.


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