gsd-2021-43797
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2021-43797",
    "description": "Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers \u0026 clients. Netty prior to version 4.1.7.1.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to \"sanitize\" header names before it forward these to another remote system when used as proxy. This remote system can\u0027t see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.7.1.Final to receive a patch.",
    "id": "GSD-2021-43797",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-43797.html",
      "https://access.redhat.com/errata/RHSA-2022:0520",
      "https://access.redhat.com/errata/RHSA-2022:1345",
      "https://access.redhat.com/errata/RHSA-2022:2216",
      "https://access.redhat.com/errata/RHSA-2022:2217",
      "https://access.redhat.com/errata/RHSA-2022:2218",
      "https://access.redhat.com/errata/RHSA-2022:4623",
      "https://access.redhat.com/errata/RHSA-2022:4918",
      "https://access.redhat.com/errata/RHSA-2022:4919",
      "https://access.redhat.com/errata/RHSA-2022:4922",
      "https://access.redhat.com/errata/RHSA-2022:5101",
      "https://access.redhat.com/errata/RHSA-2022:5498",
      "https://access.redhat.com/errata/RHSA-2022:5532",
      "https://access.redhat.com/errata/RHSA-2022:5903",
      "https://www.debian.org/security/2023/dsa-5316",
      "https://access.redhat.com/errata/RHSA-2022:6782",
      "https://access.redhat.com/errata/RHSA-2022:6783",
      "https://access.redhat.com/errata/RHSA-2022:6787",
      "https://access.redhat.com/errata/RHSA-2022:7409",
      "https://access.redhat.com/errata/RHSA-2022:7410",
      "https://access.redhat.com/errata/RHSA-2022:7411",
      "https://access.redhat.com/errata/RHSA-2022:7417"
    ]
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    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2021-43797",
      "modified": "2023-12-13T01:23:26.711299Z",
      "schema_version": "1.4.0"
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            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-02-24T15:47Z",
      "publishedDate": "2021-12-09T19:15Z"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.