CVE-2021-22898 (GCVE-0-2021-22898)

Vulnerability from cvelistv5 – Published: 2021-06-11 15:49 – Updated: 2024-08-03 18:58
VLAI?
Summary
curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.
Severity ?
No CVSS data available.
CWE
  • CWE-200 - Information Disclosure (CWE-200)
Assigner
References
Impacted products
Vendor Product Version
n/a https://github.com/curl/curl Affected: 7.7 through 7.76.1
Show details on NVD website
To clipboard 

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      "sourceIdentifier": "support@hackerone.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"support@hackerone.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-200\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-909\"}]}]"
    },
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Debido a un fallo en el analizador de opciones para el env\u00edo de variables NEW_ENV, podr\u00eda hacer que libcurl pasara datos no inicializados de un b\u00fafer basado en la pila al servidor, resultando en una potencial divulgaci\u00f3n de informaci\u00f3n interna confidencial al servidor que usaba un protocolo de red de texto sin 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  }
}


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Tags
Taxonomy of the tags.




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.



Detection rules are retrieved from Rulezet.