gsd-2019-9515
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
Aliases
Aliases
CVE-2019-9515


To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-9515",
    "description": "Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.",
    "id": "GSD-2019-9515",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-9515.html",
      "https://www.debian.org/security/2019/dsa-4520",
      "https://www.debian.org/security/2019/dsa-4508",
      "https://access.redhat.com/errata/RHSA-2020:3197",
      "https://access.redhat.com/errata/RHSA-2020:3196",
      "https://access.redhat.com/errata/RHSA-2020:2565",
      "https://access.redhat.com/errata/RHSA-2020:2067",
      "https://access.redhat.com/errata/RHSA-2020:1445",
      "https://access.redhat.com/errata/RHSA-2020:0983",
      "https://access.redhat.com/errata/RHSA-2020:0922",
      "https://access.redhat.com/errata/RHSA-2020:0727",
      "https://access.redhat.com/errata/RHSA-2019:4352",
      "https://access.redhat.com/errata/RHSA-2019:4045",
      "https://access.redhat.com/errata/RHSA-2019:4042",
      "https://access.redhat.com/errata/RHSA-2019:4041",
      "https://access.redhat.com/errata/RHSA-2019:4040",
      "https://access.redhat.com/errata/RHSA-2019:4021",
      "https://access.redhat.com/errata/RHSA-2019:4020",
      "https://access.redhat.com/errata/RHSA-2019:4019",
      "https://access.redhat.com/errata/RHSA-2019:4018",
      "https://access.redhat.com/errata/RHSA-2019:3892",
      "https://access.redhat.com/errata/RHSA-2019:2955",
      "https://access.redhat.com/errata/RHSA-2019:2939",
      "https://access.redhat.com/errata/RHSA-2019:2925",
      "https://access.redhat.com/errata/RHSA-2019:2861",
      "https://access.redhat.com/errata/RHSA-2019:2796",
      "https://access.redhat.com/errata/RHSA-2019:2766",
      "https://ubuntu.com/security/CVE-2019-9515",
      "https://advisories.mageia.org/CVE-2019-9515.html",
      "https://linux.oracle.com/cve/CVE-2019-9515.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-9515"
      ],
      "details": "Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.",
      "id": "GSD-2019-9515",
      "modified": "2023-12-13T01:23:47.509056Z",
      "schema_version": "1.4.0"
    }
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      "credit": [
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          "lang": "eng",
          "value": "Thanks to Jonathan Looney of Netflix for reporting this vulnerability."
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            "value": "Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both."
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          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.8,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-08-12T18:40Z",
      "publishedDate": "2019-08-13T21:15Z"
    }
  }
}


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