CVE-2016-4972

9.8 CRITICAL
Published: September 26, 2016 Modified: May 06, 2026
View on NVD

Description

OpenStack Murano before 1.0.3 (liberty) and 2.x before 2.0.1 (mitaka), Murano-dashboard before 1.0.3 (liberty) and 2.x before 2.0.1 (mitaka), and python-muranoclient before 0.7.3 (liberty) and 0.8.x before 0.8.5 (mitaka) improperly use loaders inherited from yaml.Loader when parsing MuranoPL and UI files, which allows remote attackers to create arbitrary Python objects and execute arbitrary code via crafted extended YAML tags in UI definitions in packages.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/23/8
Source: secalert@redhat.com
Patch Third Party Advisory
https://bugs.launchpad.net/murano/+bug/1586079
Source: secalert@redhat.com
Patch Vendor Advisory
https://bugs.launchpad.net/python-muranoclient/+bug/1586078
Source: secalert@redhat.com
Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/06/23/8
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://bugs.launchpad.net/murano/+bug/1586079
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://bugs.launchpad.net/python-muranoclient/+bug/1586078
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
3.9%
88th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

openstack