Denial of service in Red Hat Undertow

1) Resource management error

EUVDB-ID: #VU25486

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-2019-14888

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation when processing HTTP requests sent to HTTPS port. A remote attacker can send specially crafted requests to the server and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Undertow: 2.0.0.Alpha1 - 2.0.28

CPE2.3

• cpe:2.3:a:red_hat:undertow:2.0.0.Alpha1:*:*:*:*:wildfly_core:*:*
• cpe:2.3:a:red_hat:undertow:2.0.0.Alpha2:*:*:*:*:wildfly_core:*:*
• cpe:2.3:a:red_hat:undertow:2.0.0:*:*:*:*:wildfly_core:*:*

External links

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14888

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.