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Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package undertow  (opens in a new tab)

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EPSS
1.03% (63rd percentile)

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  • Snyk IDSNYK-DEBIAN13-UNDERTOW-6124763
  • published20 Dec 2023
  • disclosed12 Dec 2023
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Introduced: 12 Dec 2023

CVE-2023-5379  (opens in a new tab)
CWE-770  (opens in a new tab)

Amendment

The Debian security team deemed this advisory irrelevant for Debian:13.

NVD Description

Note: Versions mentioned in the description apply only to the upstream undertow package and not the undertow package as distributed by Debian.

A flaw was found in Undertow. When an AJP request is sent that exceeds the max-header-size attribute in ajp-listener, JBoss EAP is marked in an error state by mod_cluster in httpd, causing JBoss EAP to close the TCP connection without returning an AJP response. This happens because mod_proxy_cluster marks the JBoss EAP instance as an error worker when the TCP connection is closed from the backend after sending the AJP request without receiving an AJP response, and stops forwarding. This issue could allow a malicious user could to repeatedly send requests that exceed the max-header-size, causing a Denial of Service (DoS).