#VU88189 Memory leak in Vert.x - CVE-2024-1023

Vulnerability identifier: #VU88189

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-1023

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Vert.x
Web applications / Modules and components for CMS

Vendor: Eclipse

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when using Netty FastThreadLocal data structures. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Vert.x: 4.4.5 - 4.4.6, 4.5.0 - 4.5.1

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=2260840
https://github.com/eclipse-vertx/vert.x/issues/5078
https://github.com/eclipse-vertx/vert.x/pull/5080
https://github.com/eclipse-vertx/vert.x/pull/5082

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.