FKIE_CVE-2012-4218
Vulnerability from fkie_nvd - Published: 2012-11-21 12:55 - Updated: 2026-06-16 23:44
Severity
Summary
Use-after-free vulnerability in the BuildTextRunsScanner::BreakSink::SetBreaks function in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | seamonkey | * | |
| mozilla | thunderbird | * | |
| canonical | ubuntu_linux | 10.04 | |
| canonical | ubuntu_linux | 11.10 | |
| canonical | ubuntu_linux | 12.04 | |
| canonical | ubuntu_linux | 12.10 | |
| opensuse | opensuse | 11.4 | |
| opensuse | opensuse | 12.1 | |
| opensuse | opensuse | 12.2 | |
| suse | linux_enterprise_desktop | 10 | |
| suse | linux_enterprise_desktop | 11 | |
| suse | linux_enterprise_server | 10 | |
| suse | linux_enterprise_server | 11 | |
| suse | linux_enterprise_server | 11 | |
| suse | linux_enterprise_software_development_kit | 11 | |
| suse | linux_enterprise_software_development_kit | 11 |
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"value": "Use-after-free vulnerability in the BuildTextRunsScanner::BreakSink::SetBreaks function in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors."
},
{
"lang": "es",
"value": "Uso despu\u00e9s de liberaci\u00f3n en la funci\u00f3n BuildTextRunsScanner::BreakSink::SetBreaks en Mozilla Firefox antes de v17.0, Thunderbird antes de v17.0 y SeaMonkey antes de v2.14 permite a los atacantes remotos ejecutar c\u00f3digo arbitrario o causar una denegaci\u00f3n de servicio (corrupci\u00f3n de memoria din\u00e1mica) a trav\u00e9s de vectores no especificados."
}
],
"id": "CVE-2012-4218",
"lastModified": "2026-06-16T23:44:39.080",
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"baseSeverity": "HIGH",
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 10.0,
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"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
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"exploitabilityScore": 10.0,
"impactScore": 10.0,
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"source": "nvd@nist.gov",
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"published": "2012-11-21T12:55:02.557",
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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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