fkie_cve-2014-4171
Vulnerability from fkie_nvd
Published
2014-06-23 11:21
Modified
2025-04-12 10:46
Severity ?
Summary
mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
canonical | ubuntu_linux | 12.04 |
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"value": "mm/shmem.c en el kernel de Linux hasta 3.15.1 no implementa debidamente la interacci\u00f3n entre la notificaci\u00f3n del rango y la creaci\u00f3n de agujeros, lo que permite a usuarios locales causar una denegaci\u00f3n de servicio (apropiaci\u00f3n del i_mutex) mediante la llamada de sistema mmap para acceder a un agujero, tal y como fue demostrado mediante la interferencia con la actividad shmem intencionada a trav\u00e9s del bloqueo del completado de (1) una llamada MADV_REMOVE madvise o (2) una llamada FALLOC_FL_PUNCH_HOLE fallocate." } ], "id": "CVE-2014-4171", "lastModified": "2025-04-12T10:46:40.837", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.7, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0" }, 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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- 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.
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