CVE-2016-8649 Information

Description

lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor of the host’s /proc to access the rest of the host’s filesystem via the openat() family of syscalls.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/94498 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465 https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345 https://bugzilla.redhat.com/show_bug.cgi?id=1398242 https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c https://security-tracker.debian.org/tracker/CVE-2016-8649

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.1