Vulnerability identifier: #VU69919

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2764

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Undertow
Server applications / Web servers

Vendor: Red Hat Inc.

Description

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

The vulnerability exists due to improper management of internal resources in the UndertowInputStream.close() method related to EJB invocations. A remote attacker can force the application to keep the connection open and consume all available server resources.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Undertow: 2.0.0 - 2.3.0 Alpha2

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=2117506
http://issues.redhat.com/browse/UNDERTOW-2048

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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.