Vulnerability CVE-2015-3627
Published: 2015-05-18

Description:
Libcontainer and Docker Engine before 1.6.1 opens the file-descriptor passed to the pid-1 process before performing the chroot, which allows local users to gain privileges via a symlink attack in an image.

Type:

CWE-59

 (Improper Link Resolution Before File Access ('Link Following'))

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Docker -> Docker 
Docker -> Libcontainer 

 References:
http://lists.opensuse.org/opensuse-updates/2015-05/msg00023.html
http://packetstormsecurity.com/files/131835/Docker-Privilege-Escalation-Information-Disclosure.html
http://seclists.org/fulldisclosure/2015/May/28
https://groups.google.com/forum/#!searchin/docker-user/1.6.1/docker-user/47GZrihtr-4/nwgeOOFLexIJ
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