CVE-2024-12224
Description
A flaw was found in idna crate. This vulnerability allows hostname spoofing and potential privilege escalation via specially crafted Punycode labels that render as ASCII or empty labels, leading to incorrect equality comparisons during hostname validation.
Statement
This issue was rated as moderate because certain hostnames can be interpreted incorrectly by idna, potentially allowing an attacker to bypass hostname checks. Exploitation requires specific conditions, such as a client accepting unusual domain names and an attacker controlling a matching DNS entry. While it could expose sensitive information or allow limited privilege escalation, it does not affect system availability, and the risk is considered moderate.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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 | 5.9 | 8.8 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | High | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | Required | Required | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | Low | High | N/A |
| Availability Impact | None | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Red Hat CVSS v3 Score Explanation
There are certain checks and balances in the system, such as input validation, which makes the scope of exploitation lesser, which is why CVSS has been marked as such.
Understanding the Weakness (CWE)
Other
Technical Impact: Varies by Context
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