Detections
Analytics

CVE-2016-8649

critical

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.

References

https://security-tracker.debian.org/tracker/CVE-2016-8649

https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465

http://www.securityfocus.com/bid/94498

https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c

https://bugzilla.redhat.com/show_bug.cgi?id=1398242

Details

Source: Mitre, NVD

Published: 2017-05-01

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.1

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

Severity: Critical

EPSS

EPSS: 0.02154