CVE-2017-7889

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.

Weakness classification

• CWE-732: Incorrect Permission Assignment for Critical Resource

Primary references

• cve@mitre.org — Issue Tracking, Patch, Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Mailing List, Patch, Third Party Advisory
• cve@mitre.org — Third Party Advisory, VDB Entry
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Issue Tracking, Patch, Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Third Party Advisory