CVE-2023-46136
Description
A resource consumption flaw was found in python-werkzeug. If a specially crafted file is uploaded by a remote attacker, it may cause a denial of service.
Statement
The vulnerability found in python-werkzeug, which lets attackers carry out denial of service attacks by using carefully crafted multipart data, is considered a moderate issue because it could affect system resources and availability. When this vulnerability is exploited, it can cause the CPU to work excessively hard because the parsing mechanism keeps adding data chunks to an internal buffer without checking boundaries properly. This can result in legitimate requests being delayed or denied as worker processes get overloaded, affecting how well the web application performs and responds. While this problem doesn’t directly compromise data integrity or confidentiality, exploiting it can disrupt the availability of the service, which is why it’s seen as a moderate issue.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | 7.5 | 8 |
| Attack Vector | Network | Network | Adjacent Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | None | None | Low |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | None | None | High |
| Integrity Impact | None | None | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
The typical consequence is CPU consumption, but memory consumption and consumption of other resources can also occur.
Frequently Asked Questions
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