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PyMongo Out-of-bounds Read in the bson module

Moderate severity GitHub Reviewed Published Jun 5, 2024 to the GitHub Advisory Database • Updated Jun 18, 2024

Package

pip pymongo (pip)

Affected versions

< 4.6.3

Patched versions

4.6.3

Description

Versions of the package pymongo before 4.6.3 are vulnerable to Out-of-bounds Read in the bson module. Using the crafted payload the attacker could force the parser to deserialize unmanaged memory. The parser tries to interpret bytes next to buffer and throws an exception with string. If the following bytes are not printable UTF-8 the parser throws an exception with a single byte.

References

Published by the National Vulnerability Database Jun 5, 2024
Published to the GitHub Advisory Database Jun 5, 2024
Reviewed Jun 5, 2024
Last updated Jun 18, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:L

EPSS score

0.080%
(36th percentile)

Weaknesses

CVE ID

CVE-2024-5629

GHSA ID

GHSA-m87m-mmvp-v9qm

Source code

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