CVE-2018-18500 (GCVE-0-2018-18500)

Vulnerability from cvelistv5 – Published: 2019-02-05 21:00 – Updated: 2024-08-05 11:08
VLAI
Summary
A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.
CWE
  • n/a
References
URL Tags
https://access.redhat.com/errata/RHSA-2019:0219 vendor-advisoryx_refsource_REDHAT
https://www.mozilla.org/security/advisories/mfsa2… x_refsource_CONFIRM
https://usn.ubuntu.com/3897-1/ vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/106781 vdb-entryx_refsource_BID
https://security.gentoo.org/glsa/201903-04 vendor-advisoryx_refsource_GENTOO
https://usn.ubuntu.com/3874-1/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:0269 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:0218 vendor-advisoryx_refsource_REDHAT
https://www.mozilla.org/security/advisories/mfsa2… x_refsource_CONFIRM
https://www.debian.org/security/2019/dsa-4376 vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://www.mozilla.org/security/advisories/mfsa2… x_refsource_CONFIRM
https://www.debian.org/security/2019/dsa-4392 vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2019:0270 vendor-advisoryx_refsource_REDHAT
https://security.gentoo.org/glsa/201904-07 vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
Date Public
2019-02-05 00:00
Show details on NVD website

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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4376"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4392"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-01/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-02/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-03/"
          }
        ],
        "sourceIdentifier": "security@mozilla.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Critical",
      "current_release_date": "2026-01-09T09:01:12+00:00",
      "cve": "CVE-2018-18500",
      "id": "CVE-2018-18500",
      "initial_release_date": "2018-01-01T00:00:00+00:00",
      "product_status:fixed": "209",
      "product_status:known_not_affected": "4",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Mozilla: Use-after-free parsing HTML5 stream",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-18500.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-05T23:48:29Z",
      "cve": "CVE-2018-18500",
      "id": "CVE-2018-18500",
      "initial_release_date": "2023-02-15T04:22:40Z",
      "product_status:known_not_affected": "150",
      "product_status:recommended": "1189",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-18500",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-18500.json",
      "version": "25"
    }
  }
}



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Taxonomy of the tags.


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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.

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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.


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