CVE-2024-28219
Description
A flaw was found in Pillow. The cms_transform_new function in src/_imagingcms.c does not validate the length of its parameters before copying them into fixed-size buffers, leading to a buffer overflow, resulting in a denial of service.
Statement
This flaw can be triggered when the ImageCms.buildTransform function is called with the InMode or OutMode arguments with a string larger than 8 bytes. An application is not vulnerable if these parameters are not controlled by the user or are validated before the function is called. Additionally, the Pillow ImageCms module functions should not be exposed to untrusted usage without input validation. For this reason, this flaw has been rated with a moderate impact.
Mitigation
Make sure the ImageCms.buildTransform function is not called with the InMode or OutMode arguments with a string bigger than 8 bytes.
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 | 6.5 | 5.9 | 6.7 |
| Attack Vector | Network | Network | Local |
| Attack Complexity | High | High | High |
| Privileges Required | None | None | Low |
| User Interaction | None | None | Required |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | None | None | High |
| Integrity Impact | Low | None | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
NVD: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Buffer overflows often can be used to execute arbitrary code, which is usually outside the scope of the product's implicit security policy. This can often be used to subvert any other security service.
Availability
Technical Impact: Modify Memory; DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU)
Buffer overflows generally lead to crashes. Other attacks leading to lack of availability are possible, including putting the product into an infinite loop.
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