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Vulnerability · Published Jul 8, 2024 · Assigned by redhat

CVE-2024-5971Undertow: response write hangs in case of java 17 tlsv1.3 newsessionticket

High 7.5

In plain English

A high-severity security flaw in undertow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.9% (higher than 87% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)2.9%top 12.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:14undertow2.3.18-1DEBIAN-CVE-2024-5971
Mavenio.undertow:undertow-core2.3.15.FinalGHSA-xpp6-8r3j-ww43
Mavenio.undertow:undertow-core2.2.34.FinalGHSA-xpp6-8r3j-ww43
Ubuntu:25.10undertowno fix listedUBUNTU-CVE-2024-5971
Ubuntu:26.04:LTSundertowno fix listedUBUNTU-CVE-2024-5971
Ubuntu:26.10undertowno fix listedUBUNTU-CVE-2024-5971

Affected products (as reported)

VendorProductVersions
undertow 0 – before 2.2.34.Final2.3.0.Alpha1 – before 2.3.15.Final
Red Hat Red Hat build of Apache Camel 3.20.7 for Spring Boot see references
Red Hat Red Hat build of Apache Camel 4.4.1 for Spring Boot 3.2 see references
Red Hat Red Hat build of Apache Camel 4.4.2 for Spring Boot see references
Red Hat Red Hat JBoss Enterprise Application Platform see references
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 see references
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 see references
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 see references
Red Hat Red Hat JBoss Enterprise Application Platform 8 see references
Red Hat Red Hat build of Apache Camel for Spring Boot 3 see references
Red Hat Red Hat build of Apache Camel - HawtIO 4 see references
Red Hat Red Hat Build of Keycloak see references
Red Hat Red Hat build of Quarkus see references
Red Hat Red Hat Data Grid 8 see references
Red Hat Red Hat Fuse 7 see references
Red Hat Red Hat Integration Camel K 1 see references
Red Hat Red Hat JBoss Data Grid 7 see references
Red Hat Red Hat JBoss Enterprise Application Platform 7 see references
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack see references
Red Hat Red Hat Process Automation 7 see references
Red Hat Red Hat Single Sign-On 7 see references

Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References