FKIE_CVE-2013-6393
Vulnerability from fkie_nvd - Published: 2014-02-06 22:55 - Updated: 2026-06-17 00:00
Severity
Summary
The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| pyyaml | libyaml | * | |
| pyyaml | libyaml | 0.0.1 | |
| pyyaml | libyaml | 0.1.1 | |
| pyyaml | libyaml | 0.1.2 | |
| pyyaml | libyaml | 0.1.3 | |
| canonical | ubuntu_linux | 12.04 | |
| canonical | ubuntu_linux | 12.10 | |
| canonical | ubuntu_linux | 13.10 | |
| redhat | openstack | 3.0 | |
| redhat | openstack | 4.0 | |
| debian | debian_linux | 6.0 | |
| debian | debian_linux | 7.0 | |
| opensuse | leap | 42.1 | |
| opensuse | opensuse | 11.4 | |
| opensuse | opensuse | 13.1 | |
| opensuse | opensuse | 13.2 |
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"cveTags": [],
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"lang": "en",
"value": "The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow."
},
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"lang": "es",
"value": "La funci\u00f3n yaml_parser_scan_tag_uri en scanner.c en LibYAML anterior a 0.1.5 lleva a cabo un \"cast\" incorrecto, lo que permite a atacantes remotos causar una denegaci\u00f3n de servicio (ca\u00edda de la aplicaci\u00f3n) y probablemente ejecutar c\u00f3digo arbitrario a trav\u00e9s de etiquetas manipuladas en YAML."
}
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"id": "CVE-2013-6393",
"lastModified": "2026-06-17T00:00:24.427",
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"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
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"published": "2014-02-06T22:55:03.217",
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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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