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Improper Locking Affecting tomcat9 package, versions <9.0.22-1

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    16.98% (97th percentile)

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  • Snyk ID SNYK-DEBIAN11-TOMCAT9-532021
  • published 23 Jun 2019
  • disclosed 21 Jun 2019
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Introduced: 21 Jun 2019

CVE-2019-10072 Open this link in a new tab
CWE-667 Open this link in a new tab

How to fix?

Upgrade Debian:11 tomcat9 to version 9.0.22-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat9 package and not the tomcat9 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

References