Description
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.
References (11)
Scores
CVSS v3
5.4
EPSS
0.0024
EPSS Percentile
47.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-772
Status
published
Products (30)
io.vertx/vertx-core
4.3.4 - 4.4.8Maven
Red Hat/A-MQ Clients 2
Red Hat/CEQ 3.2
Red Hat/Cryostat 2 on RHEL 8
2.4.0-4
Red Hat/Cryostat 2 on RHEL 8
2.4.0-7
Red Hat/Cryostat 2 on RHEL 8
2.4.0-9
Red Hat/Migration Toolkit for Runtimes 1 on RHEL 8
1.2-10
Red Hat/Migration Toolkit for Runtimes 1 on RHEL 8
1.2-11
Red Hat/Migration Toolkit for Runtimes 1 on RHEL 8
1.2-12
Red Hat/Migration Toolkit for Runtimes 1 on RHEL 8
1.2-18
... and 20 more
Published
Apr 02, 2024
Tracked Since
Feb 18, 2026