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
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| bullseye | Fixed | 1:2.0.1-1 |
| bookworm | 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
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.