Advisory Published


First published: Thu Sep 14 2023(Updated: )

A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates.

Affected SoftwareAffected VersionHow to fix

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Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is GHSA-m4mm-pg93-fv78.

  • What is the severity of GHSA-m4mm-pg93-fv78?

    The severity of GHSA-m4mm-pg93-fv78 is high with a severity value of 7.5.

  • How does GHSA-m4mm-pg93-fv78 allow for a denial of service attack?

    GHSA-m4mm-pg93-fv78 allows for a denial of service attack by causing an unexpected handshake status update in SslConduit, resulting in a loop that never terminates.

  • What software packages are affected by GHSA-m4mm-pg93-fv78?

    The affected software packages are io.undertow:undertow-core version up to exclusive 2.2.24.Final and io.undertow:undertow-core version between inclusive exclusive 2.3.0 and 2.3.5.Final.

  • Where can I find more information about GHSA-m4mm-pg93-fv78?

    More information about GHSA-m4mm-pg93-fv78 can be found at the following references: CVE-2023-1108, RHSA-2023:1184, and RHSA-2023:1185.


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