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Security Advisories: GSA_kwCzR0hTQS14cHA2LThyM2otd3c0M84AA9oi

Undertow Denial of Service vulnerability

A vulnerability was found in Undertow, where the chunked response hangs after the body was flushed. The response headers and body were sent but the client would continue waiting as Undertow does not send the expected 0\r\n termination of the chunked response. This results in uncontrolled resource consumption, leaving the server side to a denial of service attack. This happens only with Java 17 TLSv1.3 scenarios.

Permalink: https://github.com/advisories/GHSA-xpp6-8r3j-ww43
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS14cHA2LThyM2otd3c0M84AA9oi
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: 6 days ago
Updated: 5 days ago


CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-xpp6-8r3j-ww43, CVE-2024-5971
References: Blast Radius: 27.9

Affected Packages

maven:io.undertow:undertow-core
Dependent packages: 912
Dependent repositories: 5,259
Downloads:
Affected Version Ranges: <= 2.3.14.Final
No known fixed version
All affected versions: 2.3.1-0.Final, 2.3.1-1.Final, 2.3.1-2.Final, 2.3.1-3.Final, 2.3.1-4.Final