Security Bulletin: IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by improper handling of request headers.

Security Bulletin

Summary

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by improper handling of request headers. A remote attacker could exploit this vulnerability to cause the consumption of Memory. IBM X-Force ID: 156242.

Vulnerability Details

CVEID: CVE-2019-4046
DESCRIPTION: IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by improper handling of request headers. A remote attacker could exploit this vulnerability to cause the consumption of Memory. IBM X-Force ID: 156242.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/156242 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
InfoSphere Streams	4.3.1.x
InfoSphere Streams	4.2.1.x
InfoSphere Streams	4.1.1.x

Remediation/Fixes

NOTE: Fix Packs are available on IBM Fix Central.

To remediate/fix this issue, follow the instructions below:

Version 4.3.x: Apply 4.3.1 Fix Pack 2 (4.3.1.2) or higher .
Version 4.2.x: Apply 4.2.1 Fix Pack 10 (4.2.1.10) or higher .
Version 4.1.x: Apply 4.1.1 Fix Pack 12 (4.1.1.12) or higher .
Versions 4.0.x,3.2.x, 3.1.x, and 3.0.x: For versions earlier than 4.x.x, IBM recommends upgrading to a fixed, supported version/release/platform of the product. Customers who cannot upgrade and need to secure their installation should open a PMR with IBM Technical Support and request assistance securing their InfoSphere Streams system against the vulnerabilities identified in this Security Bulletin.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

29 Jun 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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Tips

Security Bulletin: IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by improper handling of request headers.