CVE-2016-4972
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-4972
Vendor advisory: secalert@redhat.com — https://bugs.launchpad.net/python-muranoclient/+bug/1586078
Vendor advisory: secalert@redhat.com — https://bugs.launchpad.net/murano/+bug/1586079
Vendor advisory: secalert@redhat.com — http://www.openwall.com/lists/oss-security/2016/06/23/8
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 1:2.0.1-1 |
| debian | bullseye | fixed | 1:2.0.1-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | murano | <1.0.3 | 1.0.3 |
| PyPI | murano-dashboard | <1.0.3 | 1.0.3 |
| PyPI | murano-dashboard | >=2.0.0,<2.0.1 | 2.0.1 |
| PyPI | python-muranoclient | <0.7.3 | 0.7.3 |
| PyPI | python-muranoclient | >=0.8.0,<0.8.5 | 0.8.5 |
| PyPI | python-muranoclient | >=0.8,<0.8.5 | 0.7.3 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| openstack | mitaka-murano | {"endIncluding":"2.0.0"} | |
| openstack | murano | {"endIncluding":"1.0.2"} | |
| openstack | murano-dashboard | {"endIncluding":"1.0.2"} | |
| openstack | python-muranoclient | {"endIncluding":"0.7.2"} | |
References
- http://www.openwall.com/lists/oss-security/2016/06/23/8
- https://bugs.launchpad.net/murano/+bug/1586079
- https://bugs.launchpad.net/python-muranoclient/+bug/1586078
- https://nvd.nist.gov/vuln/detail/CVE-2016-4972
- https://github.com/openstack/murano/commit/28de8c36c9dbe4aaf4d062e6fb6099afd437f49b
- https://github.com/openstack/murano
- https://github.com/openstack/murano/blob/c898a310afbc27f12190446ef75d8b0bd12115eb/releasenotes/notes/safeloader-cve-2016-4972-19035a2a091ec30a.yaml
- https://github.com/openstack/murano/blob/c898a310afbc27f12190446ef75d8b0bd12115eb/releasenotes/source/locale/en_GB/LC_MESSAGES/releasenotes.po
- https://github.com/pypa/advisory-database/tree/main/vulns/python-muranoclient/PYSEC-2016-22.yaml
- https://security-tracker.debian.org/tracker/CVE-2016-4972
CWEs
CWE-20
Verify integrity in audit chain (admin only). AS-IS.