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Vulnerability of Apache Tomcat: denial of service via HTTP/2 WINDOW_UPDATE

Synthesis of the vulnerability 

An attacker can trigger a fatal error via HTTP/2 WINDOW_UPDATE of Apache Tomcat, in order to trigger a denial of service.
Vulnerable products: Tomcat, Avamar, NetWorker, QRadar SIEM, openSUSE Leap, Oracle Communications, Oracle DB, Solaris, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this weakness: 3/4.
Creation date: 21/06/2019.
Références of this bulletin: bulletinjul2019, CERTFR-2019-AVI-290, cpujan2020, CVE-2019-10072, DSA-2019-154, ibm10967625, openSUSE-SU-2020:0038-1, SUSE-SU-2019:1866-1, SUSE-SU-2020:0029-1, SUSE-SU-2020:0226-1, SUSE-SU-2020:0632-1, USN-4128-1, USN-4128-2, VIGILANCE-VUL-29586, ZDI-19-582.

Description of the vulnerability 

An attacker can trigger a fatal error via HTTP/2 WINDOW_UPDATE of Apache Tomcat, in order to trigger a denial of service.
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This security alert impacts software or systems such as Tomcat, Avamar, NetWorker, QRadar SIEM, openSUSE Leap, Oracle Communications, Oracle DB, Solaris, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this security weakness is important.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this security announce.

Solutions for this threat 

Apache Tomcat: version 9.0.20.
The version 9.0.20 is fixed:
  https://tomcat.apache.org/

Apache Tomcat: version 8.5.41.
The version 8.5.41 is fixed:
  https://tomcat.apache.org/

Dell EMC Avamar / Networker: patch for Third-Party Components.
A patch is indicated in information sources.

IBM QRadar SIEM: patch for Tomcat.
A patch is indicated in information sources.

openSUSE Leap 15.1: new tomcat packages.
New packages are available:
  openSUSE Leap 15.1: tomcat 9.0.30-lp151.3.6.1

Oracle Communications: CPU of January 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2625594.1
  https://support.oracle.com/rs?type=doc&id=2626101.1
  https://support.oracle.com/rs?type=doc&id=2628576.1
  https://support.oracle.com/rs?type=doc&id=2626102.1
  https://support.oracle.com/rs?type=doc&id=2622427.1
  https://support.oracle.com/rs?type=doc&id=2595443.1
  https://support.oracle.com/rs?type=doc&id=2595442.1
  https://support.oracle.com/rs?type=doc&id=2617852.1
  https://support.oracle.com/rs?type=doc&id=2626103.1

Oracle Database: CPU of January 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2602410.1

Oracle Solaris: patch for third party software of July 2019 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

SUSE LE 12: new tomcat packages.
New packages are available:
  SUSE LE 12 SP5: tomcat 9.0.31-3.25.1
  SUSE LE 12 SP4: tomcat 9.0.31-3.25.1

SUSE LE 12 SP4: new tomcat packages.
New packages are available:
  SUSE LE 12 SP4: tomcat 9.0.21-3.13.2

SUSE LE 15 RTM: new tomcat packages.
New packages are available:
  SUSE LE 15 RTM: tomcat 9.0.30-3.34.1

SUSE LE 15 SP1: new tomcat packages.
New packages are available:
  SUSE LE 15 SP1: tomcat 9.0.30-4.10.1

Ubuntu: new tomcat8 packages.
New packages are available:
  Ubuntu 18.04 LTS: tomcat8 8.5.39-1ubuntu1~18.04.3
  Ubuntu 16.04 LTS: tomcat8 8.0.32-1ubuntu1.10

Ubuntu: new tomcat9 packages.
New packages are available:
  Ubuntu 19.04: tomcat9 9.0.16-3ubuntu0.19.04.1
  Ubuntu 18.04 LTS: tomcat9 9.0.16-3ubuntu0.18.04.1
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