Bug 1535057 (CVE-2017-14804) - CVE-2017-14804 obs-build: Exploit extractbuild to write to files in the host system
Summary: CVE-2017-14804 obs-build: Exploit extractbuild to write to files in the host ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-14804
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1535058
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-01-16 15:09 UTC by Andrej Nemec
Modified: 2019-09-29 14:30 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2018-08-26 10:57:10 UTC
Embargoed:

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Description Andrej Nemec 2018-01-16 15:09:47 UTC 
A vulnerability was found in the build script of obs-build. It is possible to exploit the extractbuild script to write to files in the host system, in case of a vm build. This can be used, for instance, to replace a running bs_worker with arbitrary code.

Suse bug report (contains reproducer):

https://bugzilla.novell.com/show_bug.cgi?id=1069904
Comment 1 Andrej Nemec 2018-01-16 15:10:22 UTC 
Created obs-build tracking bugs for this issue:

Affects: fedora-all [bug 1535058]
Comment 2 Neal Gompa 2018-08-23 12:28:23 UTC 
This had been fixed in https://bodhi.fedoraproject.org/updates/FEDORA-2018-ac8aab1f7a
Comment 3 Neal Gompa 2018-08-23 12:29:39 UTC 
Oops, not fixed.
Comment 4 Neal Gompa 2018-08-26 10:57:39 UTC 
Fixed in: https://bodhi.fedoraproject.org/updates/FEDORA-2018-fe2cbf0c2b
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