Bug 1167505 (CVE-2014-6407) - CVE-2014-6407 docker: symbolic and hardlink issues leading to privilege escalation
Summary: CVE-2014-6407 docker: symbolic and hardlink issues leading to privilege escal...
Alias: CVE-2014-6407
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
: CVE-2014-3605 (view as bug list)
Depends On: 1167507 1167508
Blocks: 1133085 1167510
TreeView+ depends on / blocked
Reported: 2014-11-25 00:15 UTC by Murray McAllister
Modified: 2021-02-17 05:58 UTC (History)
20 users (show)

Fixed In Version: docker 1.3.2
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2014-12-10 21:48:37 UTC

Attachments (Terms of Use)

Description Murray McAllister 2014-11-25 00:15:30 UTC
The following flaw has been fixed in Docker 1.3.2:

The Docker engine, up to and including version 1.3.1, was vulnerable to
extracting files to arbitrary paths on the host during ‘docker pull’ and
‘docker load’ operations. This was caused by symlink and hardlink
traversals present in Docker's image extraction. This vulnerability could
be leveraged to perform remote code execution and privilege escalation.

Docker 1.3.2 remedies this vulnerability. Additional checks have been added
to pkg/archive and image extraction is now performed in a chroot. No
remediation is available for older versions of Docker and users are advised
to upgrade.


Red Hat would like to thank the Docker project for reporting these issues. Upstream acknowledges Florian Weimer of Red Hat Product Security and independent researcher Tõnis Tiigi as the original reporters.



Comment 1 Murray McAllister 2014-11-25 00:20:17 UTC
Created docker-io tracking bugs for this issue:

Affects: fedora-all [bug 1167507]
Affects: epel-6 [bug 1167508]

Comment 2 Trevor Jay 2014-11-25 01:20:54 UTC

This issue affects the versions of Docker as shipped with Red Hat Enterprise Linux 7. However, this flaw is not known to be exploitable under any supported scenario. A future update may address this issue.

Red Hat does not support or recommend running untrusted images.

Comment 3 Florian Weimer 2014-11-25 09:11:26 UTC
*** Bug 1133084 has been marked as a duplicate of this bug. ***

Comment 4 Fedora Update System 2014-12-03 17:16:22 UTC
docker-io-1.3.2-2.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Trevor Jay 2014-12-10 21:42:13 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extras

Via RHBA-2014:1977 https://rhn.redhat.com/errata/RHBA-2014-1977.html

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