CVE-2024-43483
Description
A flaw was found in dotnet. The System.Security.Cryptography.Cose, System.IO.Packaging and System.Runtime.Caching components may be exposed to hostile input, making them susceptible to hash flooding attacks, resulting in denial of service.
Statement
.NET 6.0 (dotnet6.0) was released for RHEL 8 starting with RHEL 8.5. Therefore, this .NET version is not affected in RHEL 8.4 and previous versions.
.NET 8.0 (dotnet8.0) was released for RHEL 8 starting with RHEL 8.9. Therefore, this .NET version is not affected in RHEL 8.8 and previous versions.
.NET 8.0 (dotnet8.0) was released for RHEL 9 starting with RHEL 9.3. Therefore, this .NET version is not affected in RHEL 9.2 and previous versions.
Mitigation
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
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 | N/A | 7.5 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | High | N/A | High |
Vector
Red Hat: 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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
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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