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Security Bulletin: Vulnerabilities in Apache Tomcat affects IBM Platform Symphony

Description

## Summary This interim fix provides instructions on upgrading Apache Tomcat to v8.5.57 in IBM Platform Symphony 7.1 Fix Pack 1 in order to address security vulnerabilities CVE-2020-9484, CVE-2020-11996, CVE-2020-13934, and CVE-2020-13935 in Apache Tomcat. ## Vulnerability Details ** CVEID: **[CVE-2020-13934](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13934>) ** DESCRIPTION: **Apache Tomcat is vulnerable to a denial of service, caused by not releasing the HTTP/1.1 processor after the upgrade to HTTP/2 in an h2c direct connection. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to cause OutOfMemoryException resulting in a denial of service. CVSS Base score: 5.3 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/185239](<https://exchange.xforce.ibmcloud.com/vulnerabilities/185239>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) ** CVEID: **[CVE-2020-11996](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11996>) ** DESCRIPTION: **Apache Tomcat is vulnerable to a denial of service. By sending a specially crafted sequence of HTTP/2 requests, a remote attacker could exploit this vulnerability to trigger high CPU usage for several seconds. CVSS Base score: 5.3 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/184012](<https://exchange.xforce.ibmcloud.com/vulnerabilities/184012>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) ** CVEID: **[CVE-2020-13935](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13935>) ** DESCRIPTION: **Apache Tomcat is vulnerable to a denial of service, caused by improper validation of the payload length in a WebSocket frame. By sending multiple requests with invalid payload lengths, a remote attacker could exploit this vulnerability to cause the application to enter into an infinite loop. CVSS Base score: 5.3 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/185227](<https://exchange.xforce.ibmcloud.com/vulnerabilities/185227>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) ** CVEID: **[CVE-2020-9484](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9484>) ** DESCRIPTION: **Apache Tomcat could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an unsafe deserialization when the server is configured to use the PersistenceManager with a FileStore. By sending specially-crafted input, an attacker could exploit this vulnerability to execute arbitrary code on the system. CVSS Base score: 8.8 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/182231](<https://exchange.xforce.ibmcloud.com/vulnerabilities/182231>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) ## Affected Products and Versions **Affected Product(s)**| **Version(s)** ---|--- IBM Platform Symphony| 7.1 Fix Pack 1 ## Remediation/Fixes **Products**| **VRMF**| **APAR**| **Remediation/First Fix** ---|---|---|--- IBM Platform Symphony| 7.1 Fix Pack 1| P103812| [sym-7.1-build555696](<http://www.ibm.com/support/fixcentral/swg/selectFixes?product=ibm/Other+software/Platform+Symphony&release=All&platform=All&function=fixId&fixids=sym-7.1-build555696&includeSupersedes=0> "sym-7.1-build555696" ) ## Workarounds and Mitigations None ## Get Notified about Future Security Bulletins Subscribe to [My Notifications](< http://www-01.ibm.com/software/support/einfo.html>) to be notified of important product support alerts like this. ### References [Complete CVSS v3 Guide](<http://www.first.org/cvss/user-guide> "Link resides outside of ibm.com" ) [On-line Calculator v3](<http://www.first.org/cvss/calculator/3.0> "Link resides outside of ibm.com" ) Off ## Related Information [IBM Secure Engineering Web Portal](<http://www.ibm.com/security/secure-engineering/bulletins.html>) [IBM Product Security Incident Response Blog](<http://www.ibm.com/blogs/psirt>) ## Change History 28 Jul 2020: Initial Publication *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. ## Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions. ## Document Location Worldwide [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSGSMK","label":"Platform Symphony"},"Component":"PMC","Platform":[{"code":"PF016","label":"Linux"}],"Version":"7.1 Fix Pack 1","Edition":"7.1 Fix Pack 1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]


Affected Software


CPE Name Name Version
ibm platform symphony 7.1 fix pack 1

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