Multiple vulnerabilities in Undertow

Published: 2024-08-15

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-3653 CVE-2024-5971
CWE-ID	CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Undertow Server applications / Web servers
Vendor	Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU96051

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-3653

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect handling of requests within the LearningPushHandler. A remote attacker can send specially crafted requests to the web server and consume available memory, leading to a denial of service.

Successful exploitation of the vulnerability requires that the learning-push handler is enabled (disabled by default).

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Undertow: 2.2.0 - 2.2.33

CPE2.3

External links

https://bugzilla.redhat.com/show_bug.cgi?id=2274437
https://github.com/undertow-io/undertow/releases/tag/2.2.34.Final
https://issues.redhat.com/browse/UNDERTOW-2382

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Resource exhaustion

EUVDB-ID: #VU96052