Io.vertx:vertx-core: memory leak when a tcp server is configured with tls and sni support
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- Fix
- Fixed in 4.4.8, 4.5.3
- 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: no
- Technical impact: partial
Summary
A vulnerability in the Eclipse Vert.x toolkit causes a memory leak in TCP servers configured with TLS and SNI support. When processing an unknown SNI server name assigned the default certificate instead of a mapped certificate, the SSL context is erroneously cached in the server name map, leading to memory exhaustion. This flaw allows attackers to send TLS client hello messages with fake server names, triggering a JVM out-of-memory error.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- io.vertx:vertx-core
From 4.3.4 · through 4.5.2
- vertx-core
Version range not reported
- cryostat-tech-preview/cryostat-grafana-dashboard-rhel8
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- cryostat-tech-preview/cryostat-operator-bundle
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- cryostat-tech-preview/cryostat-reports-rhel8
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- cryostat-tech-preview/cryostat-rhel8
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- cryostat-tech-preview/cryostat-rhel8-operator
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- cryostat-tech-preview/jfr-datasource-rhel8
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- mtr/mtr-operator-bundle
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- mtr/mtr-rhel8-operator
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- mtr/mtr-web-container-rhel8
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- mtr/mtr-web-executor-container-rhel8
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- mta/mta-windup-addon-rhel9
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- vertx-core
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- vertx-core
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- io.vertx/vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- vertx-core
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- io.vertx:vertx-coreMaven
From 4.3.4 · fixed in 4.4.8
- io.vertx:vertx-coreMaven
From 4.5.0 · fixed in 4.5.3