Security update for tomcat

Announcement ID: SUSE-SU-2020:1983-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-11996 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE-2020-11996 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Manager Proxy 4.1
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Server 4.1
  • Web and Scripting Module 15-SP2

An update that solves one vulnerability can now be installed.

Description:

This update for tomcat fixes the following issues:

Tomcat was updated to 9.0.36 See changelog at

  • CVE-2020-11996: Fixed an issue which by sending a specially crafted sequence of HTTP/2 requests could have triggered high CPU usage for several seconds making potentially the server unresponsive (bsc#1173389).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • Web and Scripting Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Web-Scripting-15-SP2-2020-1983=1

Package List:

  • Web and Scripting Module 15-SP2 (noarch)
    • tomcat-9.0.36-3.3.1
    • tomcat-servlet-4_0-api-9.0.36-3.3.1
    • tomcat-el-3_0-api-9.0.36-3.3.1
    • tomcat-admin-webapps-9.0.36-3.3.1
    • tomcat-webapps-9.0.36-3.3.1
    • tomcat-lib-9.0.36-3.3.1
    • tomcat-jsp-2_3-api-9.0.36-3.3.1

References: