fkie_cve-2012-2100
Vulnerability from fkie_nvd
Published
2012-07-03 16:40
Modified
2024-11-21 01:38
Severity ?
Summary
The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | 3.2 |
{
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"versionEndIncluding": "3.2.1",
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"lang": "en",
"value": "The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307."
},
{
"lang": "es",
"value": "La funci\u00f3n ext4_fill_flex_info en fs/ext4/super.c en el kernel de Linux anterior a v3.2.2, en la plataforma x86 permite a atacantes remotos asistidos por el usuario activar el sistema de archivos incompatibles con los grupos de datos y posiblemente causar una denegaci\u00f3n de servicio a trav\u00e9s de un formato incorrecto mediante un sistema de archivos ext4 que contiene un bloque con un tama\u00f1o de grupo FLEX_BG de gran tama\u00f1o (tambi\u00e9n conocido como valor de s_log_groups_per_flex). NOTA: esta vulnerabilidad existe debido a un parche incompleto para CVE-2009-4307."
}
],
"id": "CVE-2012-2100",
"lastModified": "2024-11-21T01:38:29.593",
"metrics": {
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"baseSeverity": "HIGH",
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
"version": "2.0"
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"published": "2012-07-03T16:40:32.067",
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"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.