Tracker / CVE-2017-7889
CVE-2017-7889
High 7.8
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 products and versions
| canonical | ubuntu_linux |
|---|---|
| debian | debian_linux |
| linux | linux_kernel · … → 3.2.91 |
| 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 · 3.3 → 3.10.107 |
| linux | linux_kernel · 4.10 → 4.10.12 |
| linux | linux_kernel · 4.2 → 4.4.63 |
| linux | linux_kernel · 4.5 → 4.9.24 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.