#VU64026 Unchecked Return Value in Undertow - CVE-2022-1319

Vulnerability identifier: #VU64026

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-2022-1319

CWE-ID: CWE-252

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 attack.

The vulnerability exists due to EAP 7 improperly sends two response packets, and those packets have the reuse flag set even though JBoss EAP closes the connection. A remote attacker can trigger the vulnerability to perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Undertow: before 2.2.14

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External links
https://access.redhat.com/errata/RHSA-2022:4918
https://bugzilla.redhat.com/show_bug.cgi?id=2073890

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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.