Eclipse Vert.x vulnerable to a memory leak in TCP servers
Moderate severity
GitHub Reviewed
Published
Apr 2, 2024
to the GitHub Advisory Database
•
Updated May 14, 2024
Package
Affected versions
>= 4.3.4, < 4.4.8
>= 4.5.0, < 4.5.3
Patched versions
4.4.8
4.5.3
Description
Published by the National Vulnerability Database
Apr 2, 2024
Published to the GitHub Advisory Database
Apr 2, 2024
Reviewed
Apr 2, 2024
Last updated
May 14, 2024
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