CVE-2017-7549
First published: Wed Aug 02 2017(Updated: )
A flaw was found in instack-undercloud 7.2.0 as packaged in Red Hat OpenStack Platform Pike, 6.1.0 as packaged in Red Hat OpenStack Platform Oacta, 5.3.0 as packaged in Red Hat OpenStack Newton, 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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/instack-undercloud | <=7.2.0 | |
| All of | ||
| OpenStack Instack-undercloud | =7.2.0 | |
| Red Hat OpenStack for IBM Power | =12 | |
| All of | ||
| OpenStack Instack-undercloud | =6.1.0 | |
| Red Hat OpenStack for IBM Power | =11 | |
| All of | ||
| OpenStack Instack-undercloud | =5.3.0 | |
| Red Hat OpenStack for IBM Power | =10 | |
| OpenStack Instack-undercloud | =7.2.0 | |
| Red Hat OpenStack for IBM Power | =12 | |
| OpenStack Instack-undercloud | =6.1.0 | |
| Red Hat OpenStack for IBM Power | =11 | |
| OpenStack Instack-undercloud | =5.3.0 | |
| Red Hat OpenStack for IBM Power | =10 |
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Reference Links
- http://www.securityfocus.com/bid/100407
- https://access.redhat.com/errata/RHSA-2017:2557
- https://access.redhat.com/errata/RHSA-2017:2649
- https://access.redhat.com/errata/RHSA-2017:2687
- https://access.redhat.com/errata/RHSA-2017:2693
- https://access.redhat.com/errata/RHSA-2017:2726
- https://bugzilla.redhat.com/show_bug.cgi?id=1477403
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1481447
- https://nvd.nist.gov/vuln/detail/CVE-2017-7549
- https://access.redhat.com/security/cve/CVE-2017-7549
- https://web.archive.org/web/20170907040549/http://www.securityfocus.com/bid/100407
- https://github.com/advisories/GHSA-53wm-97p6-582f (Advisory)
Frequently Asked Questions
What is the severity of CVE-2017-7549?
CVE-2017-7549 is considered a moderate severity vulnerability due to the potential for local users to exploit insecure temporary file usage.
How do I fix CVE-2017-7549?
To fix CVE-2017-7549, update instack-undercloud to a version that has addressed this vulnerability.
Which versions of instack-undercloud are affected by CVE-2017-7549?
CVE-2017-7549 affects instack-undercloud versions 5.3.0, 6.1.0, and 7.2.0.
Can a remote user exploit CVE-2017-7549?
No, CVE-2017-7549 can only be exploited by local users due to the nature of the vulnerability.
Is CVE-2017-7549 specific to Red Hat OpenStack?
Yes, CVE-2017-7549 specifically impacts OpenStack deployments utilizing instack-undercloud packaged in various Red Hat OpenStack Platform versions.
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