CVE-2024-38229
dotnet: kestrel: closing an HTTP/3 stream can cause a race condition and lead to remote code execution
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 8, 2024
Updated · August 20, 2026
Description
A flaw was found in dotnet. When closing an HTTP/3 stream while application code is writing to the response body, a race condition can cause a use-after-free.
Statement
.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.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
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.
CVSS / CWE
CVSS 3.1 · 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-416 · Use After Free