CVE Catalog

CVE-2017-7889

High
Published: Translated: NVD NIST

Summary

The vulnerability in the mm subsystem of the Linux kernel up to version 3.2 allows local users to read or write to kernel memory locations in the first megabyte, bypassing the CONFIG_STRICT_DEVMEM protection mechanism.

Risk Assessment

This threat could lead to unauthorized access to kernel memory, potentially resulting in serious security breaches within the system.

Recommendation

It is recommended to update the Linux kernel to a version that addresses this vulnerability and to restrict access to the /dev/mem file.

Related vulnerabilities

Original NVD description (English source)

The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.

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