CVE-2018-16844 (GCVE-0-2018-16844)

Vulnerability from cvelistv5 – Published: 2018-11-07 14:00 – Updated: 2024-08-05 10:32
VLAI
Summary
nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive CPU usage. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 81/100 over 1016 records in the last 180 days details
References
URL Tags
https://www.debian.org/security/2018/dsa-4335 vendor-advisoryx_refsource_DEBIAN
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:3680 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:3681 vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/105868 vdb-entryx_refsource_BID
http://mailman.nginx.org/pipermail/nginx-announce… x_refsource_MISC
http://www.securitytracker.com/id/1042038 vdb-entryx_refsource_SECTRACK
https://usn.ubuntu.com/3812-1/ vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://support.apple.com/kb/HT212818 x_refsource_CONFIRM
http://seclists.org/fulldisclosure/2021/Sep/36 mailing-listx_refsource_FULLDISC
Impacted products
Vendor Product Version CPE status
[UNKNOWN] nginx Affected: 1.15.6
Affected: 1.14.1
guessed Create a notification for this product.
Date Public
2018-11-06 00:00
Show details on NVD website
To clipboard 

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          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1042038"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3680"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3681"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16844"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://support.apple.com/kb/HT212818"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3812-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4335"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-400"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-400"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:50:14+00:00",
      "cve": "CVE-2018-16844",
      "id": "CVE-2018-16844",
      "initial_release_date": "2018-11-06T00:00:00+00:00",
      "product_status:fixed": "225",
      "product_status:known_affected": "7",
      "product_status:known_not_affected": "23",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "nginx: Excessive CPU usage via flaw in HTTP/2 implementation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-16844.json",
      "version": "3"
    }
  }
}



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