CVE-2021-29510

Description

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 cant 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 youll 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.

Risk Information

Base Score

7.5

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.066

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-29510 are fixed in Python-pydantic 1.6.2	Windows
Vulnerabilities CVE-2021-29510 are fixed in Python-pydantic 1.7.4	Windows
Vulnerabilities CVE-2021-29510 are fixed in Python-pydantic 1.8.2	Windows
Vulnerabilities CVE-2021-29510 are fixed in Python-pydantic for linux 1.6.2	Linux
Vulnerabilities CVE-2021-29510 are fixed in Python-pydantic for linux 1.7.4	Linux
Vulnerabilities CVE-2021-29510 are fixed in Python-pydantic for linux 1.8.2	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234