CVE-2024-1023 (CVSS 6.5)

Description

A vulnerability in the Eclipse Vert.x toolkit results in a memory leak due to using Netty FastThreadLocal data structures. Specifically, when the Vert.x HTTP client establishes connections to different hosts, triggering the memory leak. The leak can be accelerated with intimate runtime knowledge, allowing an attacker to exploit this vulnerability. For instance, a server accepting arbitrary internet addresses could serve as an attack vector by connecting to these addresses, thereby accelerating the memory leak.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

References

Other References

https://access.redhat.com/errata/RHSA-2024:1662 https://access.redhat.com/errata/RHSA-2024:1706 https://access.redhat.com/errata/RHSA-2024:2088 https://access.redhat.com/errata/RHSA-2024:2833 https://access.redhat.com/errata/RHSA-2024:3527 https://access.redhat.com/errata/RHSA-2024:3989 https://access.redhat.com/errata/RHSA-2024:4884 https://access.redhat.com/security/cve/CVE-2024-1023 https://bugzilla.redhat.com/show_bug.cgi?id=2260840 https://github.com/eclipse-vertx/vert.x/issues/5078

Frequently Asked Questions

What is CVE-2024-1023? +

A vulnerability in the Eclipse Vert.x toolkit results in a memory leak due to using Netty FastThreadLocal data structures. Specifically, when the Vert.x HTTP client establishes connections to different hosts, triggering the memory leak. The leak can be accelerated with intimate runtime knowledge, allowing an attacker to exploit this vulnerability. For instance, a server accepting arbitrary internet addresses could serve as an attack vector by connecting to these addresses, thereby accelerating the memory leak. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-1023? +

CVE-2024-1023 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2024-1023? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-1023