fkie_cve-2015-7550
Vulnerability from fkie_nvd
Published
2016-02-08 03:59
Modified
2025-04-12 10:46
Severity ?
Summary
The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * |
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"value": "The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls."
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"value": "La funci\u00f3n keyctl_read_key en security/keys/keyctl.c en el kernel de Linux en versiones anteriores a 4.3.4 no utiliza adecuadamente un sem\u00e1foro, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (referencia a puntero NULL y ca\u00edda del sistema) o posiblemente tiene otro impacto no especificado a trav\u00e9s de una aplicaci\u00f3n manipulada que aprovecha una condici\u00f3n de carrera entre llamadas keyctl_revoke y keyctl_read."
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"lastModified": "2025-04-12T10:46:40.837",
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}
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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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