CVE Catalog

CVE-2015-8539

High
Published: Translated: NVD NIST

Summary

The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key.

Risk Assessment

The organization may be exposed to unauthorized access to the system or service outages, potentially leading to significant operational disruptions.

Recommendation

It is recommended to update the Linux kernel to version 4.4 or later to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS