cve/2015/CVE-2015-2925.md

CVE-2015-2925

Description

The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack."

POC

Reference

• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Github

• https://github.com/Kagami/docker_cve-2015-2925
• https://github.com/xxg1413/docker-security