CVE-2017-7549
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…
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Timeline
ID reserved
By redhat
- 6 months later
· 6 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.4 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.35% · top 71% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.
Weakness
Affected products
Red Hat, Inc. · instack-undercloud
- affected Pike, 12: v7.2.0, Ocata, 11: v6.1.0, Newton, 10: v5.3.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIinstack-undercloudGHSA-53wm-97p6-582f (opens in a new tab)
References (7)
- RHSA-2017:2726 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 100407 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2017:2649 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:2687 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:2557 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:2693 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1477403 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-53wm-97p6-582f (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-7549)Record last updated .