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Bug 1477403 - (CVE-2017-7549) CVE-2017-7549 instack-undercloud: uses hardcoded /tmp paths
CVE-2017-7549 instack-undercloud: uses hardcoded /tmp paths
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20170814,repor...
: Security
Depends On: 1481447 1477414 1477415 1477416 1477417 1477418 1477419 1477420
Blocks: 1470192
  Show dependency tree / graph
 
Reported: 2017-08-01 21:44 EDT by Summer Long
Modified: 2017-12-13 20:16 EST (History)
22 users (show)

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Fixed In Version:
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Doc Text:
A flaw was found in instack-undercloud where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.
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Environment:
Last Closed: 2017-12-13 20:16:02 EST
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Documentation: ---
CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2557 normal SHIPPED_LIVE Moderate: instack-undercloud security update 2017-08-30 13:47:40 EDT
Red Hat Product Errata RHSA-2017:2649 normal SHIPPED_LIVE Moderate: instack-undercloud security, bug fix, and enhancement update 2017-09-06 16:53:50 EDT
Red Hat Product Errata RHSA-2017:2687 normal SHIPPED_LIVE Moderate: instack-undercloud security update 2017-09-12 17:09:10 EDT
Red Hat Product Errata RHSA-2017:2693 normal SHIPPED_LIVE Moderate: instack-undercloud security update 2017-09-12 16:58:05 EDT
Red Hat Product Errata RHSA-2017:2726 normal SHIPPED_LIVE Moderate: instack-undercloud security, bug fix, and enhancement update 2017-09-13 21:46:06 EDT

  None (edit)
Description Summer Long 2017-08-01 21:44:45 EDT 
Description of problem:
* /usr/share/instack-undercloud/ipxe/post-install.d/86-selinux uses: /tmp/ipxe.mod
  to compile the selinux policy
* isolated-build/pre-install.d/00-disable-external-installs uses /tmp/yum-blacklist (all versions)
Comment 1 Summer Long 2017-08-01 21:44:56 EDT 
Acknowledgments:

Name: Matthew Booth (Red Hat)
Comment 6 Summer Long 2017-08-14 18:02:20 EDT 
Created instack-undercloud tracking bugs for this issue:

Affects: openstack-rdo [bug 1481447]
Comment 7 errata-xmlrpc 2017-08-30 09:48:30 EDT 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 9.0 (Mitaka) director

Via RHSA-2017:2557 https://access.redhat.com/errata/RHSA-2017:2557
Comment 8 errata-xmlrpc 2017-09-06 13:04:03 EDT 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)

Via RHSA-2017:2649 https://access.redhat.com/errata/RHSA-2017:2649
Comment 9 errata-xmlrpc 2017-09-12 12:58:49 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform director 7.0 for RHEL 7

Via RHSA-2017:2693 https://access.redhat.com/errata/RHSA-2017:2693
Comment 10 errata-xmlrpc 2017-09-12 13:11:22 EDT 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 8.0 (Liberty) director

Via RHSA-2017:2687 https://access.redhat.com/errata/RHSA-2017:2687
Comment 11 errata-xmlrpc 2017-09-13 17:47:59 EDT 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 11.0 (Ocata)

Via RHSA-2017:2726 https://access.redhat.com/errata/RHSA-2017:2726
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