Security Bulletin
Summary
HTTP Server is supported by IBM i. IBM i has addressed the applicable CVE.
Vulnerability Details
CVEID: CVE-2018-11763
DESCRIPTION: Apache HTTP Server is vulnerable to a denial of service. By sending continuous overly large SETTINGS frames of maximum size to keep the ongoing HTTP/2 connection busy, a remote attacker could exploit this vulnerability to cause the service to fail to time out.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/150420 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Products and Versions
Release 7.3 of IBM i is affected.
Remediation/Fixes
The issue can be fixed by applying a PTF to IBM i.
Release 7.3 of IBM i is supported and will be fixed.
https://www-945.ibm.com/support/fixcentral/
The IBM i PTF numbers are:
Release 7.3 – SI68430
Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.
Workarounds and Mitigations
None
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References
Acknowledgement
None
Change History
12 October 2018: 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.
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Document Information
Modified date:
18 December 2019
UID
ibm10735045