GHSA-9ph3-v2vh-3qx7

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    GHSA-9ph3-v2vh-3qx7

    Published: 2 Apr 2024Last Modified: 28 Feb 2026
    Aliases:

    Summary: Eclipse Vert.x vulnerable to a memory leak in TCP servers

    Details: 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.

    Affected packages

    Package

    Name: io.vertx:vertx-core

    Purl: pkg:maven/io.vertx/vertx-core

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 4.3.4
    Fixed -4.4.8

    Affected versions

    4.3.4
    4.3.5
    4.3.6
    4.3.7
    4.3.8

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-9ph3-v2vh-3qx7 | CVE-DB