Undertow-core: undertow: websocketcontainer defaults for buffers and timeouts are infinite
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
Undertow is a flexible performant web server used in JBoss EAP and WildFly. A flaw was found in how Undertow handles WebSocket connections. Specifically, certain configuration limits like message buffer sizes and session timeouts cannot be adjusted and default to being unlimited. This allows a remote attacker to send large amounts of data or maintain connections indefinitely, potentially crashing the server by exhausting its memory or other resources.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- undertow-core
Version range not reported
- moditect
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- pki-core:10.6/resteasy
Version range not reported
- pki-deps:10.6/resteasy
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- resteasy
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- undertow-core
Version range not reported
- jboss-eap-7/eap74-els-openjdk11-openshift-rhel8
Version range not reported
- jboss-eap-7/eap74-els-openjdk17-openshift-rhel8
Version range not reported
- jboss-eap-7/eap74-els-openjdk8-openshift-rhel8
Version range not reported
- undertow-core
Version range not reported
- undertow-core
Version range not reported
- undertow-core
Version range not reported
- undertow-core
Version range not reported