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Allocation of Resources Without Limits or Throttling Affecting io.undertow:undertow-core package, versions [,2.3.12.Final)

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    EPSS 0.05% (21st percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-JAVA-IOUNDERTOW-6669948
  • published 21 Apr 2024
  • disclosed 12 Dec 2023
  • credit Unknown
Report a new vulnerability Found a mistake?

Introduced: 12 Dec 2023

CVE-2023-5379 Open this link in a new tab
CWE-770 Open this link in a new tab

How to fix?

Upgrade io.undertow:undertow-core to version 2.3.12.Final or higher.

Overview

io.undertow:undertow-core is a Java web server based on non-blocking IO.

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling. An attacker can disrupt service availability by repeatedly sending AJP requests that exceed the configured max-header-size attribute in ajp-listener, leading to the server closing the TCP connection without returning an AJP response.

Note:

This is only exploitable if the max-header-size is set to 64 KB or less.