CVE-2024-1300
Eclipse Vert.x vulnerable to a memory leak in TCP servers
5.4
MEDIUM
CVSS 3.1
EPSS 0.24%
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.
How to fix CVE-2024-1300
To remediate CVE-2024-1300, upgrade the affected package to a fixed version below.
- —upgrade to 4.4.8 or later
Is CVE-2024-1300 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 4.3.4, < 4.4.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L |