CVE-2017-7549
instack-undercloud vulnerable to symlink attack on tmp files
6.4
MEDIUM
CVSS 3.1
EPSS 0.08%
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.
How to fix CVE-2017-7549
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- —no fix listed
- —no fix listed
Is CVE-2017-7549 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, <= 7.2.0, <= 6.1.0, <= 5.3.0
- from 0, <= 7.2.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.4 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N |