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CVE-2018-14645 (GCVE-0-2018-14645)

Vulnerability from cvelistv5 – Published: 2018-09-21 13:00 – Updated: 2024-08-05 09:38
VLAI
Summary
A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.
Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
URL Tags
https://usn.ubuntu.com/3780-1/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:2882 vendor-advisoryx_refsource_REDHAT
https://www.mail-archive.com/haproxy%40formilux.o… mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… x_refsource_CONFIRM
https://access.redhat.com/errata/RHBA-2019:0028 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
[UNKNOWN] haproxy Affected: 1.8.14
guessed Create a notification for this product.
Date Public
2018-09-20 00:00
Show details on NVD website
To clipboard 

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                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2018-09-21T13:29:00.453",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "https://access.redhat.com/errata/RHBA-2019:0028"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2882"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Issue Tracking",
              "Mitigation",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14645"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3780-1/"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg31253.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHBA-2019:0028"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2882"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Mitigation",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14645"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3780-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg31253.html"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-30T11:25:55+00:00",
      "cve": "CVE-2018-14645",
      "id": "CVE-2018-14645",
      "initial_release_date": "2018-09-20T12:00:00+00:00",
      "product_status:fixed": "57",
      "product_status:known_not_affected": "78",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "haproxy: Out-of-bounds read in HPACK decoder",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-14645.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-27T01:18:08Z",
      "cve": "CVE-2018-14645",
      "id": "CVE-2018-14645",
      "initial_release_date": "2023-02-15T04:25:11Z",
      "product_status:known_not_affected": "22",
      "product_status:recommended": "10",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-14645",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-14645.json",
      "version": "16"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.