Bug 1412147

Summary: CVE-2016-9962 docker: Insecure opening of file-descriptor allows privilege escalation [fedora-all]
Product: [Fedora] Fedora Reporter: Antonio Murdaca <amurdaca>
Component: dockerAssignee: Antonio Murdaca <amurdaca>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 25CC: adimania, admiller, amurdaca, dwalsh, ichavero, jcajka, jchaloup, lsm5, marianne, miminar, nalin, riek, vbatts
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Hardware: Unspecified   
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Fixed In Version: docker-1.12.6-3.git51ef5a8.fc25 Doc Type: If docs needed, set a value
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: 1412189 (view as bug list) Environment:
Last Closed: 2017-01-13 02:24:08 UTC Type: Bug
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Bug Blocks: 1409531    

Description Antonio Murdaca 2017-01-11 11:49:20 UTC 
Description of problem:

http://seclists.org/oss-sec/2017/q1/54

Docker Engine version 1.12.6 has been released to address a vulnerability
and is immediately available for all supported platforms. Users are advised
to upgrade existing installations of the Docker Engine and use 1.12.6 for
new installations.

Please send any questions to security () docker com.


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[CVE-2016-9962] Insecure opening of file-descriptor allows privilege
escalation

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RunC allowed additional container processes via `runc exec` to be ptraced
by the pid 1 of the container.  This allows the main processes of the
container, if running as root, to gain access to file-descriptors of these
new processes during the initialization and can lead to container escapes
or modification of runC state before the process is fully placed inside the
container


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Comment 1 Fedora Update System 2017-01-11 13:29:43 UTC 
docker-1.12.6-3.git51ef5a8.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2017-dbc2b618eb
Comment 2 Fedora Update System 2017-01-12 07:52:40 UTC 
docker-1.12.6-3.git51ef5a8.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-dbc2b618eb
Comment 3 Fedora Update System 2017-01-13 02:24:08 UTC 
docker-1.12.6-3.git51ef5a8.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.