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Use After Free The advisory has been revoked - it doesn't affect any version of package apache2  (opens in a new tab)

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EPSS
1.5% (87th percentile)

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  • Snyk IDSNYK-UBUNTU1604-APACHE2-615130
  • published10 Sept 2020
  • disclosed13 Jul 2017
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Introduced: 13 Jul 2017

CVE-2017-9789  (opens in a new tab)
CWE-416  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2 package and not the apache2 package as distributed by Ubuntu.

When under stress, closing many connections, the HTTP/2 handling code in Apache httpd 2.4.26 would sometimes access memory after it has been freed, resulting in potentially erratic behaviour.

References