CVE-2022-32206 (GCVE-0-2022-32206)

Vulnerability from cvelistv5 – Published: 2022-07-07 00:00 – Updated: 2025-05-05 16:16
VLAI
Summary
curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling (CWE-770)
Assigner
References
Impacted products
Vendor Product Version
n/a https://github.com/curl/curl Affected: Fixed in 7.84.0
Show details on NVD website
To clipboard 

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      "sourceIdentifier": "support@hackerone.com",
      "vulnStatus": "Modified",
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    },
    "microsoft_vex": {
      "current_release_date": "2026-02-21T03:57:20.000Z",
      "cve": "CVE-2022-32206",
      "id": "msrc_CVE-2022-32206",
      "initial_release_date": "2022-07-02T00:00:00.000Z",
      "product_status:fixed": "2",
      "product_status:known_affected": "2",
      "product_status:known_not_affected": "2",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "curl \u003c 7.84.0 supports \"chained\" HTTP compression algorithms meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable \"links\" in this \"decompression chain\" was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a \"malloc bomb\" makingcurl end up spending enormous amounts of allocated heap memory or trying toand returning out of memory errors.",
      "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-32206.json",
      "version": "2"
    },
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:49:09+00:00",
      "cve": "CVE-2022-32206",
      "id": "CVE-2022-32206",
      "initial_release_date": "2022-06-27T00:00:00+00:00",
      "product_status:fixed": "212",
      "product_status:known_affected": "8",
      "product_status:known_not_affected": "129",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "curl: HTTP compression denial of service",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-32206.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-19T18:11:30Z",
      "cve": "CVE-2022-32206",
      "id": "CVE-2022-32206",
      "initial_release_date": "2023-02-15T03:25:24Z",
      "product_status:known_affected": "216",
      "product_status:known_not_affected": "29",
      "product_status:recommended": "477",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-32206",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-32206.json",
      "version": "53"
    },
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2022-32206\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-05T16:16:54.022Z\", \"dateReserved\": \"2022-06-01T00:00:00.000Z\", \"assignerOrgId\": \"36234546-b8fa-4601-9d6f-f4e334aa8ea1\", \"datePublished\": \"2022-07-07T00:00:00.000Z\", \"assignerShortName\": \"hackerone\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.