CVE-2016-1546 (GCVE-0-2016-1546)

Vulnerability from cvelistv5 – Published: 2016-07-06 14:00 – Updated: 2024-08-05 23:02
VLAI
Summary
The Apache HTTP Server 2.4.17 and 2.4.18, when mod_http2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service (stream-processing outage) via modified flow-control windows.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
certcc CNA under the mitre root
CNA scorecard E 42/100 over 156 records in the last 180 days details
References
URL Tags
http://www.securityfocus.com/bid/92331 vdb-entryx_refsource_BID
http://httpd.apache.org/security/vulnerabilities_… x_refsource_CONFIRM
https://security.gentoo.org/glsa/201610-02 vendor-advisoryx_refsource_GENTOO
https://access.redhat.com/errata/RHSA-2017:1161 vendor-advisoryx_refsource_REDHAT
http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
http://www.apache.org/dist/httpd/CHANGES_2.4 x_refsource_CONFIRM
http://svn.apache.org/viewvc?view=revision&revisi… x_refsource_CONFIRM
http://www.oracle.com/technetwork/topics/security… x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2018060… x_refsource_CONFIRM
https://lists.apache.org/thread.html/56c2e7cc9deb… mailing-listx_refsource_MLIST
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https://lists.apache.org/thread.html/re3d27b6250a… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rf6449464fd8… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rc998b18880d… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/re1e3a24664d… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r04e89e873d5… mailing-listx_refsource_MLIST
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https://lists.apache.org/thread.html/rb14daf9cc4e… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r76142b8c511… mailing-listx_refsource_MLIST
Date Public
2016-04-11 00:00
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              "userInteractionRequired": false
            }
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          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-07-06T14:59:01.503",
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            "tags": [
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              "Vendor Advisory"
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            "url": "http://httpd.apache.org/security/vulnerabilities_24.html"
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            "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html"
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        ],
        "sourceIdentifier": "cret@cert.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-399"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T21:57:28+00:00",
      "cve": "CVE-2016-1546",
      "id": "CVE-2016-1546",
      "initial_release_date": "2016-04-11T00:00:00+00:00",
      "product_status:fixed": "60",
      "product_status:known_not_affected": "31",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "httpd: mod_http2 denial-of-service by thread starvation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-1546.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2025-10-07T11:09:16Z",
      "cve": "CVE-2016-1546",
      "id": "CVE-2016-1546",
      "initial_release_date": "2023-02-15T05:08:15Z",
      "product_status:known_not_affected": "153",
      "product_status:recommended": "57",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-1546",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-1546.json",
      "version": "12"
    }
  }
}



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