Tracker / CVE-2014-5206
CVE-2014-5206
High 7.2
The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.
Affected products and versions
| canonical | ubuntu_linux |
|---|---|
| linux | linux_kernel · 3.11 → 3.12.27 |
| linux | linux_kernel · 3.13 → 3.14.19 |
| linux | linux_kernel · 3.15 → 3.16.3 |
| linux | linux_kernel · 3.8 → 3.10.55 |
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.