Security Bulletin
Summary
IBM WebSphere Cast Iron Solution & App Connect Professional has addressed the following vulnerabilities reported in Apache Tomcat.
Vulnerability Details
DESCRIPTION: Apache Tomcat is vulnerable to a denial of service, caused by the acceptance of streams with excessive numbers of SETTINGS frames and the permitting of clients to keep streams open without reading/writing request data by the HTTP/2 implementation. By sending excessive SETTINGS frames, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/158637 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
WebSphere Cast Iron v 7.5.0.0, 7.5.0.1, 7.5.1.0
WebSphere Cast Iron v 7.0.0.0, 7.0.0.1, 7.0.0.2
App Connect Professional v 7.5.2.0
App Connect Professional v 7.5.3.0
Remediation/Fixes
Product | VRMF | APAR | Remediation/First Fix |
IBM Cast Iron | 7.0.0.0 7.0.0.1 7.0.0.2 |
LI80968 | 7002 Fixcentral Link |
IBM Cast Iron | 7.5.0.0 7.5.0.1 7.5.1.0 |
LI80968 | 7510 fixcentral Link |
App Connect Professional | 7.5.2.0 | LI80968 | 7520 Fixcentral link |
App Connect Professional | 7.5.3.0 | LI80954 | 7530 Fixcentral link |
Workarounds and Mitigations
None.
Get Notified about Future Security Bulletins
References
Change History
30 July 2019: Original version published.
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Was this topic helpful?
Document Information
Modified date:
14 August 2019
UID
ibm10961472