FKIE_CVE-2012-6656
Vulnerability from fkie_nvd - Published: 2014-12-05 16:59 - Updated: 2026-06-16 23:48
Severity
Summary
iconvdata/ibm930.c in GNU C Library (aka glibc) before 2.16 allows context-dependent attackers to cause a denial of service (out-of-bounds read) via a multibyte character value of "0xffff" to the iconv function when converting IBM930 encoded data to UTF-8.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| debian | debian_linux | 7.0 | |
| canonical | ubuntu_linux | 10.04 | |
| canonical | ubuntu_linux | 12.04 | |
| canonical | ubuntu_linux | 14.04 | |
| canonical | ubuntu_linux | 14.10 | |
| gnu | glibc | * |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
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"matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
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"vulnerable": true
},
{
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"versionEndIncluding": "2.16",
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}
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}
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "iconvdata/ibm930.c in GNU C Library (aka glibc) before 2.16 allows context-dependent attackers to cause a denial of service (out-of-bounds read) via a multibyte character value of \"0xffff\" to the iconv function when converting IBM930 encoded data to UTF-8."
},
{
"lang": "es",
"value": "iconvdata/ibm930.c en GNU C Library (tambi\u00e9n conocido como glibc) anterior a 2.16 permite a atacantes dependientes de contexto causar una denegaci\u00f3n de servicio (lectura fuera de rango) a trav\u00e9s de un valor de caracteres de multibytes de \u00270xffff\u0027 en la funci\u00f3n iconv cuando convierte datos codificados de IBM930 a UTF-8."
}
],
"id": "CVE-2012-6656",
"lastModified": "2026-06-16T23:48:33.827",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2014-12-05T16:59:00.067",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "http://www.debian.org/security/2015/dsa-3142"
},
{
"source": "secalert@redhat.com",
"tags": [
"Broken Link"
],
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2014:175"
},
{
"source": "secalert@redhat.com",
"tags": [
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},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "http://www.securityfocus.com/bid/69472"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "http://www.ubuntu.com/usn/USN-2432-1"
},
{
"source": "secalert@redhat.com",
"url": "https://security.gentoo.org/glsa/201503-04"
},
{
"source": "secalert@redhat.com",
"tags": [
"Exploit",
"Issue Tracking"
],
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=14134"
},
{
"source": "secalert@redhat.com",
"url": "https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=6e230d11837f3ae7b375ea69d7905f0d18eb79e5"
},
{
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"tags": [
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"tags": [
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{
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"tags": [
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"url": "http://www.openwall.com/lists/oss-security/2014/08/29/3"
},
{
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"tags": [
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"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2014/09/02/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/69472"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://www.ubuntu.com/usn/USN-2432-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/201503-04"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking"
],
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=14134"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=6e230d11837f3ae7b375ea69d7905f0d18eb79e5"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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