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CVE-2018-5178 (GCVE-0-2018-5178)

Vulnerability from cvelistv5 – Published: 2018-06-11 21:00 – Updated: 2024-08-05 05:26
VLAI
Summary
A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur. This vulnerability affects Thunderbird ESR < 52.8, Thunderbird < 52.8, and Firefox ESR < 52.8.
Severity
8.1 (High)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • Buffer overflow during UTF-8 to Unicode string conversion through legacy extension
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2018:1415 vendor-advisoryx_refsource_REDHAT
https://security.gentoo.org/glsa/201810-01 vendor-advisoryx_refsource_GENTOO
https://access.redhat.com/errata/RHSA-2018:1726 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:1414 vendor-advisoryx_refsource_REDHAT
https://security.gentoo.org/glsa/201811-13 vendor-advisoryx_refsource_GENTOO
https://www.mozilla.org/security/advisories/mfsa2… x_refsource_CONFIRM
https://usn.ubuntu.com/3660-1/ vendor-advisoryx_refsource_UBUNTU
http://www.securitytracker.com/id/1040898 vdb-entryx_refsource_SECTRACK
https://www.debian.org/security/2018/dsa-4199 vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2018:1725 vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/104138 vdb-entryx_refsource_BID
https://www.debian.org/security/2018/dsa-4209 vendor-advisoryx_refsource_DEBIAN
https://www.mozilla.org/security/advisories/mfsa2… x_refsource_CONFIRM
https://bugzilla.mozilla.org/show_bug.cgi?id=1443891 x_refsource_CONFIRM
Impacted products
Vendor Product Version CPE status
Mozilla Thunderbird ESR Affected: unspecified , < 52.8 (custom)
guessed Create a notification for this product.
Mozilla Thunderbird Affected: unspecified , < 52.8 (custom)
guessed Create a notification for this product.
Mozilla Firefox ESR Affected: unspecified , < 52.8 (custom)
guessed Create a notification for this product.
Date Public
2018-05-09 00:00
Show details on NVD website
To clipboard 

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Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201810-01\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201811-13\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3660-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2018/dsa-4199\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2018/dsa-4209\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2018-12/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2018-13/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-25T18:20:27+00:00",
      "cve": "CVE-2018-5178",
      "id": "CVE-2018-5178",
      "initial_release_date": "2018-05-09T00:00:00+00:00",
      "product_status:fixed": "266",
      "product_status:known_not_affected": "4",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Mozilla: Buffer overflow during UTF-8 to Unicode string conversion through legacy extension",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-5178.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-31T08:50:26Z",
      "cve": "CVE-2018-5178",
      "id": "CVE-2018-5178",
      "initial_release_date": "2023-02-15T04:31:54Z",
      "product_status:known_affected": "30",
      "product_status:recommended": "443",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-5178",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-5178.json",
      "version": "18"
    }
  }
}



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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.