Upstream information

CVE-2021-29510 at MITRE

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 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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having important severity.

CVSS v2 Scores
CVSS detail National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1186019 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 15 SP6
SUSE Linux Enterprise High Performance Computing 15 SP6
SUSE Linux Enterprise Module for Python 3 15 SP6
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • python311-pydantic >= 1.10.8-150400.9.3.6
 Patchnames:
SUSE Linux Enterprise Module for Python 3 15 SP6 GA python311-pydantic-1.10.8-150400.9.3.6
SUSE Linux Enterprise Server 16.0
  • python313-pydantic >= 2.11.7-160000.2.2
 Patchnames:
SUSE Linux Enterprise Server 16.0 GA python313-pydantic-2.11.7-160000.2.2
openSUSE Tumbleweed
  • python310-pydantic >= 2.6.4-2.1
  • python311-pydantic >= 2.6.4-2.1
  • python312-pydantic >= 2.6.4-2.1
  • python36-pydantic >= 1.8.2-1.2
  • python38-pydantic >= 1.8.2-1.2
  • python39-pydantic >= 1.8.2-1.2
 Patchnames:
openSUSE-Tumbleweed-2024-11254
openSUSE-Tumbleweed-2024-13869

SUSE Timeline for this CVE

CVE page created: Wed May 12 19:34:16 2021
CVE page last modified: Sun Nov 2 13:01:31 2025