CVE-2021-29510
Pydantic is a data validation and settings management using Python type hinting. In affected versions passing either `'infinity'`, `'inf'` or `float('inf')` (or their negatives) to `datetime` or `date` fields causes validation to run forever with 100% CPU usage (on one CPU). Pydantic has been patched with fixes available in the following versions: v1.8.2, v1.7.4, v1.6.2. All these versions are available on pypi(https://pypi.org/project/pydantic/#history), and will be available on conda-forge(https://anaconda.org/conda-forge/pydantic) soon. See the changelog(https://pydantic-docs.helpmanual.io/) for details. If you absolutely can't upgrade, you can work around this risk using a validator(https://pydantic-docs.helpmanual.io/usage/validators/) to catch these values. This is not an ideal solution (in particular you'll need a slightly different function for datetimes), instead of a hack like this you should upgrade pydantic. If you are not using v1.8.x, v1.7.x or v1.6.x and are unable to upgrade to a fixed version of pydantic, please create an issue at https://github.com/samuelcolvin/pydantic/issues requesting a back-port, and we will endeavour to release a patch for earlier versions of pydantic.
EPSS 0.07% · 20.6th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:20.04:LTS | pydantic | 0, 0.30.1-1, 1.2-1 |
Exploit Intelligence
Timeline
- May 13, 2021 CVE Published
- May 14, 2021 EPSS Score
- Jul 17, 2021 EPSS Score
- Sep 16, 2021 EPSS Score
- Nov 17, 2021 EPSS Score
- Jan 18, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 20, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 21, 2022 EPSS Score
- Jul 23, 2022 EPSS Score
- Sep 23, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-29510 third-party-advisory
- https://ubuntu.com/security/notices/USN-6553-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-29510 third-party-advisory