CVE-2018-12379 (GCVE-0-2018-12379)

Vulnerability from cvelistv5 – Published: 2018-10-18 13:00 – Updated: 2024-08-05 08:30
VLAI?
Summary
When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
Severity ?
No CVSS data available.
CWE
  • Out-of-bounds write with malicious MAR file
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 62 (custom)
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    Mozilla Firefox ESR Affected: unspecified , < 60.2 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 60.2.1 (custom)
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Show details on NVD website

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      "sourceIdentifier": "security@mozilla.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-12379\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2018-10-18T13:29:05.307\",\"lastModified\":\"2025-11-25T17:50:16.803\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. This vulnerability affects Firefox \u003c 62, Firefox ESR \u003c 60.2, and Thunderbird \u003c 60.2.1.\"},{\"lang\":\"es\",\"value\":\"Cuando Mozilla Updater abre un archivo de formato MAR que contiene un nombre de archivo de \u00edtem muy largo, puede desencadenarse una escritura fuera de l\u00edmites que conduce a un cierre inesperado potencialmente explotable. Esto requiere la ejecuci\u00f3n manual de Mozilla Updater en el sistema local con el archivo MAR malicioso para que ocurra. La vulnerabilidad afecta a Firefox en versiones anteriores a la 62, Firefox ESR en versiones anteriores a la 60.2. y Thunderbird en versiones anteriores a la 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  }
}


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Sightings

Author Source Type Date

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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