CVEvulnerability

CVE-2017-7889

7.8 HIGH Published 2017-04-17 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2017-04-17
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-732

Description

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.

Affected configurations

• linux linux kernel (< 3.2.91) • linux linux kernel (>= 3.3 < 3.10.107) • linux linux kernel (>= 3.11 < 3.12.74) • linux linux kernel (>= 3.13 < 3.16.46) • linux linux kernel (>= 3.17 < 3.18.50) • linux linux kernel (>= 3.19 < 4.1.41) • linux linux kernel (>= 4.2 < 4.4.63) • linux linux kernel (>= 4.5 < 4.9.24) • linux linux kernel (>= 4.10 < 4.10.12) • debian debian linux 8.0 • canonical ubuntu linux 12.04 • canonical ubuntu linux 14.04

Related

Weakness · CWE (1)

  • CWE-732 Incorrect Permission Assignment for Critical Resource weakness

References