Vulnerability CVE-2016-8649
Published: 2017-05-01

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.

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:N/AC:L/Au:S/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9/10
10/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linuxcontainers -> LXC 

 References:
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
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