CVE-2021-33195 (GCVE-0-2021-33195)

Vulnerability from cvelistv5 – Published: 2021-08-02 18:51 – Updated: 2024-08-03 23:42
VLAI
Summary
Go before 1.15.13 and 1.16.x before 1.16.5 has functions for DNS lookups that do not validate replies from DNS servers, and thus a return value may contain an unsafe injection (e.g., XSS) that does not conform to the RFC1035 format.
Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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      "version": "4"
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      "cve": "CVE-2021-33195",
      "id": "CVE-2021-33195",
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      "product_status:known_not_affected": "837",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "golang: net: lookup functions may return invalid host names",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-33195.json",
      "version": "3"
    },
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      "current_release_date": "2026-08-26T02:27:46Z",
      "cve": "CVE-2021-33195",
      "id": "CVE-2021-33195",
      "initial_release_date": "2023-02-15T03:40:35Z",
      "product_status:recommended": "189",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-33195",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-33195.json",
      "version": "13"
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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.

Sightings

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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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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.